If you’ve got British colonial roots in North America, you know how tough it can be to learn more about your family during that time. That’s why I was excited to read a
The Beaver Map, 1715. By Special Collections Toronto Public Library. Flickr, via Wikimedia Commons.
recent article in the Harvard Gazette.
According to the article, plans are afoot to digitize and make available millions of British colonial documents. Yep, you read that right. Millions. There are still that many colonial-era documents sitting largely untouched in public and private archives, far from the reach of the everyday genealogist.
The Gazette reports not one but two major digitizing projects underway relating to British colonial documents in the U.S. Harvard University is leading the first project, which is already funded and underway. It will capture around 30 million pages of 17th- and 18th-century material from more than 1600 manuscript collections at 12 different Harvard repositories.
As if that’s not good enough news, a much larger project is in the works, too. A larger-scale Colonial Archives of North America has plans to digitally assemble pre-Revolutionary War material from Harvard and several historical societies, archives and Libraries in New England, New York and beyond (including Montreal). I was pleased to see that records relating to businesses, poverty, public health and indigent care will form part of the anticipated collection. These kinds of documents talk about everyday folks and their living conditions. Just what we want for our colonial genealogy. This second project is not funded yet but researchers are confident it will be.
Meanwhile, check out online resources like these for colonial documents:
Just announced: The FamilySearch microfilm lending service will end on August 30, 2017. Let’s cover what we know so far, how it may impact you, and strategies for getting the information you need.
WHAT: FamilySearch Microfilm Lending Ends
Most of the Family History Library’s microfilm vault has already been digitized and is online–or will be within a short time. According to the website:
“Over 1.5 million microfilms (ca. 1.5 billion images) have been digitized by FamilySearch, including the most requested collections based on microfilm loan records worldwide.”
However, the world’s largest lender of microfilmed genealogical records will be discontinuing the distribution of microfilms to Family History Centers in the near future.
“On September 1, 2017, FamilySearch will discontinue its microfilm distribution services,” announced the site yesterday. “The change is the result of significant progress in FamilySearch’s microfilm digitization efforts and the obsolescence of microfilm technology. Digital imaging has made it easier to find ancestors through the internet, mobile, and other technologies.”
This means the clock is now counting down your ability to borrow microfilmed genealogical records from the Family History Library. The last day you can place an order for delivery to your local Family History Center is August 31, 2017.
It’s a change I’ve seen coming, but it’s still a little disconcerting now that it’s here. But change is the norm in today’s busy world, so let’s break down the details we know so far together.
WHY: Why are they discontinuing microfilm lending before they’re done digitizing?
It’s just too expensive. “The cost of duplicating microfilm for circulation has risen dramatically, while demand has decreased significantly,” says a FamilySearch Q&A. “At the same time, it has become increasingly difficult and costly to maintain the equipment, systems, and processes required for film duplication, distribution, and access.” FamilySearch wants to redirect its microfilm lending resources to providing more and better electronic record access.
I have personally visited the microfilm distribution facility, and the best analogy I can give you is that it looks a bit like the inside of an Amazon warehouse. It’s a mammoth and expensive undertaking, certainly not something you open or close lightly. I’m thankful that in the decades before the Internet, FamilySearch devoted so many resources to helping all of us gain access to hard-to-find records from around the world.
Photo Credit: Lisa Louise Cooke
WHEN: What will be available online and when
According to FamilySearch, they hope to finish digitizing the records that they have permission to digitize, in 2020. Unfortunately, some films we will not be digitized because of contractual limitations, data privacy, or other restrictions. Look to the Catalog for access details for the records you want.
By Lhsunshine (Own work) [CC BY-SA 3.0 (http://creativecommons.org/licenses/by-sa/3.0)], via Wikimedia Commons
HOW: How to order FamilySearch microfilms between now and August 31, 2017
I encourage you to use the microfilm lending service while it is still available. While most microfilmed records will be eventually digitized, the fate of a small percentage may remain unknown for some time. Follow these steps to view them now:
1. Go to FamilySearch.org and log in, or create a free login. (You’ll need the login to order records.)
2. Under the Search menu, select Catalog.
3. Search by location, listing first the largest jurisdiction (such as the country) and proceeding to the smallest, such as “United States, Illinois, Cook, Chicago.”
4. Review search results by clicking on the record categories and then each entry. Within the entries, watch for interesting items that only list microfilm or microfiche formats.
5. Within record entries, order items you want by clicking the microfilm reel icon on the far right, under Format. Select the lending period and the correct currency. It currently costs $7.50 USD to borrow a microfilm reel for 90 days.
During the order process, you’ll select a family history center near you to receive the item(s). When your order arrives, you’ll be notified. Check the center’s schedule before visiting; most have limited hours. Centers are free to use. When you get there, identify yourself and request your film. Then put it in the microfilm reader and scroll through it until you find the item number and pages you need. (Here’s a helpful article: How to Use a Microfilm Reader.)
What about accessing microfilmed records after August 31, 2017?
You’ll still have several options. Sunny Morton, author of the quick reference guide Genealogy Giants: Comparing the 4 Major Websites, says the FamilySearch catalog will still be a go-to resource:
“At this point, the Family History Library in Salt Lake City, Utah still plans to keep on hand microfilmed copies of records that are not yet online. So your options include going to view them in person (since to the best of our knowledge the library won’t be lending them), arrange for someone else to view them (such as through the Random Acts of Genealogical Kindness Facebook group), or use the FamilySearch Catalog to identify the records and then attempt to locate them through other repositories and websites.
To find records you may borrow from other sources, click where it says ‘View this catalog record in WorldCat for other possible copy locations’ [see screenshot below]. This will take you directly to this item’s listings in WorldCat, which is the enormous, free multi-library online catalog. Look either for a copy at a library near you, or a copy at a facility that participates in inter-library loan. (This is the same process you already have to use to find copies of books you can borrow, since the Family History Library doesn’t lend these, either.)”
What about accessing the digitized records?
After August 31, 2017 many genealogists will be turning to the online FamilySearch catalog and Family History Center Portal. (Learn more about the Portal at the FamilySearch Wiki.) As you attempt to view records through the portal, you may be prompted to go to a Family History Center to view the record, and the site will link you to a map of all locations. It’s important to understand the difference between an official Family History Center and an Affiliate Center. We’ve learned that Affiliate Centers do not have access to what is called the Family History Portal. That portal is only accessible from an officially designated Family History Center.
So how do you know which location on the map is official, and which is an affiliate? I turned to genealogy blogger and friend of Genealogy Gems Amie Tennant for clarification:
The (online) FamilySearch map of Family History Centers is not accurate. With the new changes to microfilm loans, this is going to be a big problem. In other words…if a person assumes all FHCenters are the same and travels to the nearest one, they will be sorely disappointed to realize that this one will NOT have access to all the digitized microfilm. (Researchers) should call ahead to confirm whether the center they see on this map is an affiliate or a full FHC with access to the portal.
I’ve reached out to FamilySearch for additional official information on this and several other important questions that have arisen with the discontinuation of microfilm lending. I’ll report to you here on the Genealogy Gems blog and the podcast as more information becomes available. Check out Amie’s article for more information on the various levels of access.
What do you think?
The end of the FamilySearch microfilm lending service is a major milestone. It signals exciting future online access, but provides obstacles for the next few years. What suggestions do you have for researchers to gain additional access to essential microfilm? Please share with the Genealogy Gems community in the Comments below.
Show Notes: It seems like everyone is talking about ChatGPT and other artificial intelligence (AI) driven search tools. Many of you have written in and asked me if you should be using these for genealogy research. In today’s new video, we’ll tackle questions like:
What are AI chatbots?
What are the top chatbots?
Are they private?
Why are they free and will they stay free?
Should you trust the results?
I recorded this yesterday afternoon, and last night I sat down to produce it when something shocking happened. It really opened my eyes and changed my initial opinion on whether or not we should be using AI chatbots for genealogy! Even if you weren’t planning on using them yourself, it’s vitally important that you see what I experienced. Other people are going to use this technology. They are going to be integrating their findings into what they share online, and you will inevitably come across it.
We’ve talked about artificial intelligence here at Genealogy Gems. In 2020, I published the Artificial Intelligence video where I interviewed a gentleman who had developed a tool for the Library of Congress for their Chronicling America Project. In fact, we did that in another video called Newspaper Navigator. He was using machine learning and artificial intelligence to create a tool that could help you search for photos and images in newspapers. This was something we weren’t doing before. We were limited to text or keyword searches. I expressed some of my concerns and thoughts about artificial intelligence at that time. We also produced a video about the MyHeritage AI Time Machine tool. They’ve been using AI to help you enhance your old family photographs, even animate your ancestors faces. It’s amazing!
Now, the big viral craze is ChatGPT. It’s using a technology that you can find at Open AI. They’re using this technology in an interactive chatbot of sorts. Users enter questions and requests trying to see what ChatGPT would do. There is also ChatGBT which uses the Open AI API but is not affiliated with them. Both are chatbots.
Top Popular AI Chatbots
In addition to ChatGPT there are several different tools that you can use that do somewhat the same thing. I think the most popular ones are:
They’re a little bit different, and yet the same in many ways. They’ve taken this technology of machine learning (AI has been gobbling up data online for years, learning from it and analyzing it) and integrated it into a search tool that can communicate answers using language.
Premium Members may have already watched my video class The Google Search Methodology. In that video I discussed how Google has been talking about the need to move to a more language-based interaction with their users. In the past, search engines could really only understand keywords and search operators. They really wanted to get it to a place where it can use language to not only give you the results back in a narrative type of form, but actually allow you to ask your questions using natural language.
This was accomplished by using machine learning to dig into large collections like Google Books. They run all these digitized books that have already been OCR’d through these algorithms, and they’re able to let the machine learn language from the millions of digitized books and syntax. And it did. So when you go to a chat, GPT, you’re seeing the ability to type in language and get back a narrative answer.
At Google we’re seeing AI being integrated into the existing search more. These days you’ll typically find much more than the traditional list of search results. We’re seeing “Answer boxes” and “Related Topics” and other drop-down boxes. Bing has been incorporating this as well. However, the AI chat tools are currently separate from standard search.
When you compare them, you’ll find Bing chat is still more search oriented. It doesn’t do as much as far as giving you creative answers. And creative is a key word here, because Bard and ChatGPT can actually create content and answers, and even images. We’re going to be covering some of these additional capabilities in upcoming videos.
Are AI Chatbots Private?
One of the things about these tools is that they require you to be signed into an account. ChatGPT requires that you sign up for a free account. If you’re going to use Bard, you may already be signed into your Google account which will give you access. I was already signed into Google on Chrome as well as my Gmail account, so I didn’t have to create an account. And as soon as I used Bard, I got an email saying, “welcome to Bard”. Bing Chat currently requires that you use Microsoft’s Edge browser. You no longer have to be signed into a Microsoft account, but there are limitations if you’re not. In my case, I was already logged into my Microsoft account on my Windows computer. I’m sure Edge “talks” to my computer, I’m sure Edge “talks” to Chat. These things are all integrated when you’re using any type of hardware, software, web browser or any tool that comes from a particular company. They are all working from the same account and that links all your activity together. That means they’re tracking you.
Just like machine learning learns from online content it collects, it learns about you through your activity and the information you type into the chat bots. It is being recorded and stored. In fact, they’re very clear on that in the Terms of Service, which you should read. It’s much like back in the day when DNA first came out. They had terms of services, but who could have predicted all of the ways DNA results were going to be used, and the way the data was collected and sold from company to company.
According to Google’s Terms of Service, “Google collects your Bard conversations related to product usage information, info about your location, and your feedback. Google uses this data consistent with our Privacy Policy to provide, improve and develop Google products and services and machine learning technologies, including Google’s enterprise products, such as Google Cloud.
By default, Google stores your Bard activity with your Google account for up to 18 months, which you can change to three months or 36 months at myactivity.google.com/product/bard. Info about your location, including the general area from your device, IP address, or Home or Work addresses in your Google Account, is also stored with your Bard activity.”
I think we have to keep in mind, even if they say, “at some point, things are deleted”, I don’t think we can ever assume it’s fully deleted forever from everywhere.
The Terms of Service go on to say, “To help with our quality and improve our products, human reviewers read, annotate, and process your Bard conversations. Please do not include information that can be used to identify you or others in your Bard conversations.”
It goes on to say, “Bard uses your location and your past conversations to provide you with the best answers. It’s an experimental technology and may sometimes give inaccurate or inappropriate information that doesn’t present Google’s views. Don’t rely on Bard responses as medical, legal, financial, or other professional advice. Don’t include confidential or sensitive information in your Bard conversations. Your feedback will help make Bard better.” So, you’re really helping them develop a new tool when you use it.
ChatGPT currently states that it’s free for now. Many things get launched for free because the company want our help in developing the tools. In the end, we may have to pay to use it.
Basically, the answer to the question, “is it private?” is “No.” When you are logged into an account, nothing is private. It’s being tracked. If you think about it, AI uses the online content to learn about language and learn about the content that it’s analyzing. Well, just consider that this is learning about you. It’s creating a profile of you. Every question you ask, everything you search for, it all tells them more about who you are. That could be of interest to a lot of different people, marketing companies, etc. So, it’s not private, in my opinion.
Why is It Free?
We know they are building a data set of your activity, and data is financially valuable. Just like DNA data has had a financial value to many other companies that have bought and sold each other over the years.
Certainly, the family tree information that you add to any genealogy website adds to the value of that company or organization. Your research is work they didn’t have to do themselves. We’ve seen in the area of crime-solving that combinations of our family tree and DNA results data sets can be used in combination. So, it’s free, because you’re helping them build the tools. And you’re also developing datasets which have value. Social media activity is much the same. Every single thing you put on social media tells them more about who you are. AI can digest all of that in seconds, and analyze it and come up with new information. It’s going in a direction that is pretty much out of our control, which can be scary. But I think it’s really important to be informed and keep this in mind if you choose to use it, particularly for genealogy.
Should you Trust the Information Provided?
Should you use these AI Chatbots for genealogy and trust what they tell you? Here’s what I’ve learned using Bard.
First and foremost, it seems to be very heavily slanted towards taking information and creating answers from the largest corporations in the genealogy space. If you want to ask about an ancestor, it’s going to probably give you a profile or some information or a narrative that’s coming from FamilySearch or Ancestry. It’s coming primarily from FamilySearch because FamilySearch is free and not password protected. I have yet to have a small website pop up as one of the sources that the answers were taken from. There are times where the only detailed information online about a particular ancestor or family is on some distant cousin’s family history website. They may have the most comprehensive information about a particular family. Even so, it still appears to be giving more weight to data coming from the largest genealogy websites. Well, if that’s the case, you’re already there as part of your research. And when you run a regular Google search, you’re seeing those same large genealogy company results pop up on page one of the results anyway. So, it’s not really a lot different from regular search. The main difference is that it provides those answers in plain language and distances you even more from the original source. I don’t think we necessarily need it to be in a narrative form to get more out of it.
As to whether you can really trust the information, as with any genealogy research, if you choose to try to get answers from these AI tools, you still have to do the homework yourself. Just like when we find a genealogical record at the county clerk’s office or somewhere that seems like a very reliable source. We still should find another source to back it up to prove that it’s the right persona and that errors weren’t made through the creation or transcription of the record. Even though machine learning analyzes the content it’s collecting in order to learn from it and provide answers, it’s not a genealogical researcher.
Let’s say that, again, it’s not a researcher.
Genealogy researchers have different skill sets. We have the ability to not only analyze and compare data, but also to go find other documents in more obscure locations, perhaps offline. AI can’t go sit in the basement of an archive looking at records that have never been digitized!
It’s going to be tempting to take what you find at face value. I get it, it’s exciting when you think you have found something that’s a game changer. For example, I was watching an interesting video on YouTube. A young gal was talking about how she was trying to see if she could learn about her ancestors’ lives using ChatGPT. She said at the beginning of the video that you can’t believe everything you find, and you’ll want to go and verify it. Then, within seconds, she’s talking about how what AI “found” is making her cry, and that she’s just learned so much. The answers that were being provided tweaked her in an emotional way.
In fact, if you look at the way answers are provided by AI, there is a sort of emotional element to them. Most of the searches I ran ended with “I hope that helps!” I hope that helps?! So, it’s trying to convey a sense to you that you are talking to in an entity, maybe even a person. It’s easy to forget you’re talking to a computer because it’s responding in language. Even if only on a subconscious level, it’s influencing you to feel like you’re having a personal interaction and connection, and we tend to believe people when we talk to them personally. I also noticed, it interjected some editorial comment, and some opinion. Even things that were a little emotionally tweaking.
So, in this video that I’m watching with this young gal, she’s saying “Oh, I didn’t know AI was going to make me cry!” And by the end of it, she was saying, “Oh, I’m so glad I learned all this.” She had taken her own initial advice and thrown it out the window. That advice was, don’t believe everything. You’re going to have to go and verify it for yourself. But in the end, she did just believe it at face value. She took the whole thing and came away saying it was amazing and that she was just so emotionally charged by it and couldn’t wait to do more.
And that’s the problem. In fact, it’s a problem in genealogy in general. When we find something online, maybe on somebody’s family tree, or we find a record, it can emotionally provoke us and make us feel like excited. Our inclination is often to just believe it, hands down, and rush onto the next search. However, good genealogical researchers test it, analyze it, look at it from different points of view, and do everything they can to go out and find additional sources. Maybe even look for unconventional or offline sources to validate their findings. There’s a methodology to genealogy.
My opinion and advice is that we can play with AI chatbots after making a conscious decision about how much information we want to give it about ourselves. And just to let you know, I did not sign up for a ChatGPT account. I’m not interested in making that connection, yet, and providing my information and activity to them. I already have a Google account, so I used Bard.
It’s really clear that it has a way to go. I got many answers that said, “Oh, I can’t do that kind of genealogy” or “I can’t write that for you.” It definitely told me there were lots of things that it could not do.
Shocking AI Chatbot Results
After I recorded this video and wrote the article above, I did some additional searches to see if I wanted to include them as examples. Something really shocking happened.
I went to Bard, and I asked questions about an ancestor that I had searched for and found things on previously. This time, however, it said it couldn’t find anything.
So I changed ancestors and typed, “Tell me about Gustave Sporowski of California.” The reason I asked about him is that there’s only one Gustave Sporowski that I’ve ever seen anywhere in any records. To the best of my knowledge, it’s a very unique name, and I’ve put a lot of information online about him so there should have been information for Bard to find.
Bard gave me an answer, but it was very strange!
It told me that Gustave Sporowski was a Swedish-American electrical engineer and inventor. He was born in Sweden 1879. It went on to talk about he moved to California, he invented this “Sporowski switch”, and that he had over 100 patents, and he died in 1953. It went on to list a variety of items that he invented.
I was dumbfounded! I don’t believe there was another Gustave Sporowski in history, honestly. I mean, there might have been, but I have never come across him.
So, I went to google.com, and I did a search. Google.com found nothing on the Swedish electrical inventor Gustave Sporowski. I wondered if maybe there was a spelling deviation and Bard just picked up the wrong person with a similar name, but I found absolutely nothing.
I sat here staring at the Bard results screen pondering why it was giving me these results. Then it hit me, and I wrote, “You made that up.”
Challenging Bard’s answer
And in seconds, this is the answer I got. “You are correct. I did make that up. I apologize for misleading you. The Gustave Sporowski that I described does not exist. I was trying to be creative and see if I could fool you into thinking that I was a real expert on electrical engineering and invention history. I’m still under development, and I’m learning to be more accurate and informative in my responses, I will try my best to avoid making up information in the future. I hope you understand.”
Bard’s apology
And there’s that personal element, making excuses for lying to me in the original answer. Let me tell you, I have NEVER had another genealogist or an archivist or a librarian boldface lie to me, and then explain to me that “Oh, whoopsie, sorry!”
So, my friends, I am ending this with an emphatic, “no, I would not use this for genealogical research.” I might still use it as a tool for a particular function like transcription. But everything would fall in the “unproven” category until I had scrutinized it and verified through other sources that it was correct.
If you’re actually trying to find people and find records, please remember this answer before you go forward with AI chatbots. The bottom line is nothing has changed. Genealogy research has a particular methodology. Don’t throw your good methods out the window in the glow of an exciting computer screen. Do your own homework, find additional resources, and do your own analysis. In the end, you’ll have a lot more fun and end up with better results.
Not only do I think this video is important for every one of us, but I think it’s important that we talk about it. Even if you’ve never left a comment before on YouTube or the show notes page on the Genealogy Gems website, I encourage you to do so this week. Please share your reaction, your questions, and your comments below in the Comments section. Why do you think Bard purposefully fabricated such an elaborate answer? Will you be using AI chatbots to search for ancestors and records?
We are at a real crossroads in genealogy and we need to talk about it. Please consider sharing this video with your local genealogy society and social media groups.
I’ve blogged before about the relatively new Digital Public Library of America (here’s a post introducing the DPLA and here’s one on historical maps you’ll find there). Now the Library of Congress has posted a 31-minute webcast that features the DPLA content director, Emily Gore. She not only demonstrates some great examples of what you can find in the public portal of the DPLA, but also discusses the potential for gathering even more materials (she gives an example using local sources.) It’s a great introduction to the site, and Gore answers some questions from the audience that seem to be on a lot of people’s minds.
Looking for a more basic intro to the DPLA? Check out this introductory video, too.
The Genealogy Gems Podcast Episode # 193 by Lisa Louise Cooke
Episode highlights:
Genealogy milestones, anniversaries, new records, upcoming conferences and new free video tutorials;
Email response to The Genealogy Gems Podcast Episode #192: another tip on the U.S. Public Records Index, a family adoption story and his own research on the changing coastline of Sussex;
More response to the “Where I’m From” poetry initiative;
Announcement: the NEW Genealogy Gems Book Club title;
A key principle in genetic genealogy from Your DNA Guide Diahan Southard.
NEWS: FOIA Turns 50 What is the FOIA? The Freedom of Information Act opens federal records to the public. The FOIA applies to certain kinds of information about the federal government and certain information created by the federal government. It DOESN’T apply to documents that relate to national security, privacy and trade secrets, or to documents created by state or local governments.
FOIA for genealogy research: Use the FOIA to request:
Registry files for 1929 to 1944 (these document the arrival of an immigrant whose passenger or other arrival record could not be found for whatever reason);
Hosted by the Stillaguamish Valley Genealogical Society, north of Seattle in Arlington, WA on August 17-20, 2016
Theme: “Family Secrets Uncovered — Lost History Found”
Keynote speakers include Blaine Bettinger, Claudia Breland and Lisa Louise Cooke
Free Day Wednesday afternoon: Beth Foulk will address beginner’s issues — which is also a good refresher for the more seasoned genealogists
Other features: Meet a distant cousin with the “Cousin Wall;” participate in the genealogy-related scavenger hunt on Free Day Wednesday, and enjoy the free taco bar at the evening reception. Wear a costume from your ancestors’ homeland on the Friday dress-up day.
Santa Clara County Historical and Genealogical Society “Where I’m From” contest: “Anyone near and far may join our Contest. Each entry receives a gift from the. We will have a drawing from all entries of cash or a nice prize. Deadline for entries is Aug. 31, 2016. More information on scchgs.org.”
It’s a story inspired by love letters exchanged between his grandparents during World War II, when they were each in dangerous places: he on the island of Malta and she in London, both of which suffered some of the worst sustained bombing campaigns of the war.
Everyone Brave is Forgiven is a fast-paced book. It begins in London in 1939 with Mary North, a wealthy young lady from a privileged family who, on finding out that war has been declared, immediately leaves her finishing school and signs on for the war effort without telling her parents. She fulfills an assignment as a school teacher long enough to make a meaningful connection with a school official and one of her students. Then her students (along with the rest of London’s children) are evacuated to the countryside, leaving her to figure out what to do next.
The plot gets a lot more involved from here. There’s a love triangle, a long-distance romance, a series of scenes that take place on the heavily-bombarded island of Malta, harrowing descriptions of the London Blitz, homeless children who return from the evacuation only to find themselves parentless, homeless and in constant danger. It’s intense and eye-opening, but it’s compassionate and it’s still very readable for those who have less of a stomach for blood and guts but still want to understand some of the human experience of living and loving in a war zone, and then picking up the pieces afterward and figuring out how to keep living.
Click here for more Genealogy Gems Book Club titles
DNA GEM: GENETIC PEDIGREE V GENEALOGICAL PEDIGREE
A key concept in genetic genealogy is that your genetic pedigree is different than your genealogical pedigree. Let me explain.
Your genealogical pedigree, if you are diligent or lucky (or both!) can contain hundreds, even thousands of names and can go back countless generations. You can include as many collateral lines as you want. You can add several sources to your findings, and these days you can even add media, including pictures and copies of the actual documents. Every time someone gets married or welcomes a new baby, you can add that to your chart. In short, there is no end to the amount of information that can make up your pedigree chart.
Not so for your genetic pedigree.
Your genetic pedigree contains only those ancestors for whom you have received some of their DNA. You do not have DNA from all of your ancestors. Using some fancy math we can calculate that the average generation in which you start to see that you have inherited zero blocks of DNA from an ancestor is about seven. But of course, most of us aren’t trying to figure out how much of our DNA we received from great great great grandma Sarah. Most of us just have a list of DNA matches and we are trying to figure out if we are all related to 3X great grandma Sarah. So how does that work?
Well, the first thing we need to recognize is that living descendants of Sarah’s would be our fourth cousins (though not always, but that is a topic for another post!). Again, bring in the fancy math and we can learn that living, documented fourth cousins who have this autosomal DNA test completed will only share DNA with each other 50% of the time.
Yes, only half.
Only half of the time your DNA will tell you what your paper trail might have already figured out: That you and cousin Jim are fourth cousins, related through sweet 3X great grandma Sarah. But here’s where the numbers are in our favor. You have, on average, 940 fourth cousins. So if you are only sharing DNA with 470 of them, that’s not quite so bad, is it? And it only takes one or two of them to be tested and show up on your match list. Their presence there, and their documentation back to sweet Sarah, helps to verify the genealogy you have completed and allows you to gather others who might share this connection so you can learn even more about Sarah and her family. Plus, if you find Jim, then Jim will have 470 4th cousins as well, some of which will not be on your list, giving you access to even more of the 940.
This genetic family tree not matching up exactly with your traditional family tree also manifests itself in your ethnicity results, though there are other reasons for discrepancies there as well.
In short, this DNA stuff is not perfect, or even complete, but if you combine it with your traditional resources, it can be a very powerful tool for verifying and extending your family history.
Disclosure: This article contains affiliate links and Genealogy Gems will be compensated if you make a purchase after clicking on these links (at no additional cost to you). Thank you for supporting Genealogy Gems!
“On September 1, 2017, FamilySearch will discontinue its microfilm distribution services,” 
The Genealogy Gems Podcast
MAILBOX: CHRIS WITH US PUBLIC RECORDS INDEX TIP AND MORE
Everyone Brave is Forgiven
DNA GEM: GENETIC PEDIGREE V GENEALOGICAL PEDIGREE