If you’re doing DNA tests for family history, you may see lots of predicted cousin matches: 2nd, 3rd, 4th, etc…..But what does that predicted genetic relationship actually mean? Learn about centimorgans, the powerful genetic genealogy unit of measure, and how it helps your research.
How DNA Tests Measure Genetic Relationships
When we are looking at genetic relationships, there are also many ways we can measure them. But ultimately, we want the testing company to tell us how likely it is that a particular individual shares a single, recent common ancestor with us. One factor in this calculation is to take into account the total amount of DNA we share with that match.
Currently, all the testing companies are reporting this sum in centimorgans (cMs). Every company reports to you the total number of shared cMs, as outlined below.
AncestryDNA: Click on the match to access the personal profile page for that match. In the second section, under Predicted Relationship, you will see the confidence level. To the right of the confidence level, you will see a grey circle with a little “i” in it. Clicking there will show you the total amount of shared cMs as well as how many pieces of DNA you share.
Family Tree DNA: On the main match page for your Family Finder results, you will see the total amount of shared cMs in the third column.
23andMe: You can see the percentage of shared DNA from the main DNA Relatives home page. To convert the percentage into centimorgans, just multiply your percentage by 68 (that will at least get you close). You can also see total shared cMs in the chromosome browser tool (go to Tools > DNA Relatives > DNA).
MyHeritageDNA: The total amount of shared DNA is shown on the main match page under the title Match Quality. MyHeritage also has a new DNA Match Review page. Click here to read more about that.
Centimorgan: A Genetic “Crystal Ball”
It is very tempting to think of a cM just like you would think of an inch or a centimeter, and for all practical purposes, that is okay. But it is actually much more complicated than that.
A cM is actually more like a crystal ball: it helps us predict how likely a piece of DNA looks exactly as it did a generation ago. This, in turn, helps us calculate how far back we should be looking for the common ancestor between two people.
But for our practical purposes, you can use the total amount of shared DNA, in combination with this chart compiled by Blaine Bettinger and the Shared cM Project, to better assess your genealogical relationship with your match based on your genetics.
To use the chart, take the total amount of shared DNA you have with a match, and look up that number in the chart to get an idea of what kind of genealogical relationship might best fit the genetics that you see. For example, if I share 69 cM with my match, we might be third cousins. But we might also be second cousins once or twice removed.
How do you figure out which one? Simply put: do genealogy research! It’s time to use traditional records and research skills to better understand the genetic clues in your family history mysteries.
My series of DNA quick reference guides can help you get the most out of your DNA tests for family history. I definitely recommend the value-priced bundle of all 10 guides. But I especially recommend the guides listed below if you’re to the point where you’re trying to understand what genetic relationships mean:
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You’re going to want to make some time in your schedule this week to explore these new genealogy records that just might help you discover a new branch of your family tree! This week we highlight a wide variety of intriguing records including historical maps, oral histories, workhouse records, and historical newspapers. (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 helping us bring these free articles to you!)
Bird’s-Eye View Maps Are Now Online
Maps are often things of beauty, and many of the maps at the DSpace online repository are no exception. Like many libraries, the State Library of Massachusetts has a large collection of bird’s-eye view maps. These maps have now been digitized and are available online.
Though the collection focuses on Massachusetts, the maps are not limited to just that state. A search of “New York” retrieves this Bird’s-eye view of the city of New York from 1853:
This online collection currently includes 120 maps and most of the maps date from the late 1800s up to the early 1900s.
Keep an eye on this collection, particularly if you’re genealogical research takes your family tree into Massachusetts because the word is that there will be many more added in the near future.
Ohio World War II Oral Histories Digital Collection
World War II ended in 1945 making a man who enlisted at the age of 18 that year, 92 years old today. A new digital archive at Bowling Green State University is striving to digitize old cassette tapes and video tapes that contain interviews with over 100 veterans from Ohio.
According to the website, the exhibit “provides full digital access to the History 303 World War II oral histories (MS-0871). The oral histories were collected from 2000-2004 for a “History of World War II” (History 303) course taught by Drs. Walter E. Grunden and Kathren Brown in the BGSU Department of History, who assigned students the project of recording an interview with an individual who directly experienced the war, whether as a military veteran, Holocaust survivor, refugee, or non-combatant on the home front.”
BGSU’s World War II veteran oral histories include both men and women. who served.
The project is part of a $6,700 grant the university received from the Ohio History Connection. A helpful finding aid is available for the collection here at the BGSU website.
You can search and view the interview here. If you’re like me, you’ll find these interviews with many of the Greatest Generation compelling to watch even if you don’t have relatives from Ohio.
Findmypast: New and exclusive Donegal Workhouse records
Findmypast has added over 400,000 Donegal, Ireland records to their growing collection of Irish Workhouse records.
The records consist of both transcripts and images of original admission and discharge registers as well as board of guardians’ minute books spanning the years 1840 to 1922.
The collection covers the unions of:
Ballyshannon
Donegal
Dunfanaghy
Glentis
Inishowen
Letterkenny
Milford
and Stranorlar.
As well as registers and minute books, users can also expect to find:
accounts
death registers
dispensary notices
letters
notices
notifications
petitions
relief registers
supplier contracts
Union receipts, and more.
From Findmypast: “High levels of poverty in 19th century Ireland meant that hundreds of thousands of Irish people passed through the workhouses. Irish workhouses were generally built to accommodate around 800 inmates although it soon became clear that more space was needed and programme of building took place throughout the 1840s and 50s.
Former workhousein Dunfanaghy, Donegal Flickr user nz_willowherb [CC BY 2.0 (https://creativecommons.org/licenses/by/2.0)]
Life inside was grim. At first, there was no so-called outdoor relief, as would have been common in England. Outdoor relief was when the poor could simply use the workhouse facilities as needed by undertaking a day’s work. Indoor relief was initially the only option and required the poor to prove they were destitute before they were admitted.”
Did you find an ancestor or bust a brick wall using our list of new online genealogical records? Please leave a comment below and share your story and inspire others. And while you’re at it, please share this article using our social buttons (at the top of this article) with your genealogy friends. We thank you, and they will too!
A local genealogist used these strategies to help identify old photos taken on holiday in England by an Australian family. Read more about her savvy tips below and view the free video on using Google image search by Lisa Louise Cooke.
Sandra Stocks can’t resist solving genealogical mysteries–her own, or someone else’s. So when she saw an article in the Huddersfield Daily Examiner of West Yorkshire titled, “Can you solve the mystery of these old photographs?” she had to answer.
The photos in the article belonged to an Australian family. They included a series of images taken in the 1930s while the party was on holiday along the Great British coast. A partly-legible name and address on a picture postcard in the group provided a clue.
A few of the article’s readers responded with assistance. One of these readers was Sandra, who volunteers with the Kirkheaton Family History Group. Her answer was featured in a follow-up article (“Mystery SOLVED!”). We reached out to Sandra ourselves, to see if she would share the research strategies she used to identify these old photos. Very generously, she did!
Sandra Stocks, left, with Ann from Canada. Their grandfathers were cousins; they met via Ancestry.com and Ann visited England. They met up at The Croppers Arms pub, where a mutual ancestor was a 19th-century landlord. Photo courtesy of Sandra Stocks.
How-to Identify Old Photos in 4 Easy Steps
Genealogy Gems Premium website members can listen to her full answer in the Genealogy Gems Premium Episode 143. In the meantime, here’s a helpful summary for everyone:
1. Look closely at the photo for any identifying names or words. Sandra begins by saying, “Although the name on the postcard looked like Mr. J. Stogley, when I looked on the newspaper’s website there were other photographs, one which showed the name P. Hogley, Druggist, above a shop window.” (Don’t see anything? Skip to step 4, below.)
2. Use any names or places you identify to consult historical records for that place and time. Sandra continues, “I then searched on Ancestry.co.uk for Joseph Hogley, which, being an unusual name, was easy to find…In the 1911 English census he was living with his wife at the address on the postcard, so I knew I had the right chap. I then searched for him in [an] earlier census and found his family, and his brother Percy Hogley, a druggist, the writer of the postcard.”
3. Follow up in other historical records to identify additional relatives–and possible subjects in the photos. Sandra most often consults birth, marriage, and death records on Ancestry.co.uk and Findmypast.co.uk. “Not everybody wants to pay for a subscription,” she acknowledges, so she also recommends FreeBMD.org.uk “which allows you to search births, marriages, and deaths in England and Wales. A quick search of births for Hogley between 1850 and 1932 would have given me the births of Joseph and Percy Hogley in Huddersfield in 1875 and 1877, respectively. I used FreeBMD to discover that Joseph and his wife had a son, Bernard Thomas Hogley, in 1913 and Bernard married in 1945.”
4. If the photos have no identifying names or places, go straight to those who might recognize them: the locals. Lastly, Sandra shares, “There is a great family history forum where I could have posted a photograph and within a very short time somebody would have told me an approximate year when the picture was taken. The website is RootsChat.com and they also have pages for each English and Welsh county where local people are more than happy to help with genealogy queries.”
More on How-to Identify Old Photos
Unidentified old photos exist in nearly everyone’s family history holdings. Pull those old photos out and discover what else you can discern using these additional tips in Lisa Louise Cooke’s free video titled “How to Google Image Search to Identify Old Photos Using a Smartphone & Tablet.” By learning how to match the images you have to other images on the web, you may find some great new clues for your genealogy! This trick works great for distinct or well-known images, such as a location, or perhaps an important person in your family tree. Give it a try!
The Genealogy Gems Podcast Episode 200 with Lisa Louise Cooke
Listen Now
It’s finally here – the 200th episode of the free Genealogy Gems podcast, also celebrating its 10th year.
In this special episode, Lisa invites Professor Mark Auslander to share his discoveries about a mother and young daughter separated by slavery. Learn how he pieced together their story from a poignant family heirloom found at a flea market.
Throughout the episode, you will hear from several listeners, past podcast guests, Gems staffers and supporters in the genealogy industry with congratulations, memories, stories, and favorite Gems tips. Listen for the DNA success story of an adoptee who never gave up his search for his biological roots.
Thanks to all listeners and friends who sent congratulations! Among them are:
Yev Pusin, Social Marketing Marketer, Backblaze online computer backup service, also celebrating its 10th anniversary
MAILBOX: LISA AND SUNNY
The following were mentioned in listener emails and voicemails:
Family History: Genealogy Made Easy Podcast by Lisa Louise Cooke. This is a FREE step-by-step series for beginning genealogists?and more experienced ones who want to brush up or learn something new. One listener mentioned the series on naturalization records in episodes 29-31.
The Genealogy Gems Premium Podcast by Lisa Louise Cooke. Monthly episodes?and the full archive of past episodes?are available to Genealogy Gems Premium website subscribers. This podcast takes what you love about the free Genealogy Gems podcast and goes deeper, broader and more exclusively into topics of interest for U.S. and international audiences.
Using Evernote to organize your family history research: free tips and great resources to help you make the most of this free app (or its Premium version) to keep all your genealogy research notes and links organized and at your fingertips.
Keep your family history research, photos, tree software files, videos and all other computer files safely backed up with Backblaze, the official cloud-based computer backup system for Lisa Louise Cooke’s Genealogy Gems. Learn more at http://www.backblaze.com/Lisa.
Lisa Louise Cooke uses and recommends RootsMagic family history software. From within RootsMagic, you can search WebHints on FamilySearch.org, Findmypast.com and MyHeritage.com. Soon RootsMagic will also be able to search records and even sync your tree with Ancestry.com, too.
Mark’s path to the probable family of this artifact used these techniques:
Look closely at all clues from the artifact: the fabric, stitching, colors, facts conveyed in the text, etc. Look at both the historical clues and the artistic or symbolic aspects of it.
Create a profile for the people mentioned based on what is known. Probable age for Ruth Middleton in 1921, etc.
Use contextual and social history clues to hypothesize a scenario. The inclusion of “South Carolina” hints that the seamstress didn’t live in South Carolina, so he guessed that she was part of the Great Migration of millions of African-Americans in the early 1900s who headed from the rural South to the industrial Midwest and other urban cities.
Take advantage of unusual clues. Rose is a common name for an enslaved woman, but not Ashley.
Look through all available records. Possible census listings for Ruth Middleton in 1920 didn’t seem likely candidates. He dug through marriage records for Northern states until he found a woman named Ruth who married a man named Middleton who fit the profile he’d created.
Use specialized sources for African-American research, especially records created by and about the slaveholder that relate to the holding, sale or transfer of enslaved people.
Mark says that some researchers describe the search process as “guided by some force larger than yourself that keeps you going through those endless hours in microfilm rooms or online. But it does connect us all in very profound ways to those who came before and those who come after?.Through genealogical work, in a sense we can triumph over death itself and we can move back and forth in time in the most remarkable way.”
Coming up next month in The Genealogy Gems Podcast episode 201: An interview with Angela Walton-Raji on finding African-American ancestors. She shares tons of resources! Even if you haven’t found any African-Americans on your family tree, the challenges and rewards of African-American genealogical research are both fascinating and moving to learn about.
Legacy Tree Genealogists provides expert genealogy research service that works with your research goals, budget and schedule. The Legacy Tree Discovery package offers 3.5 hours of preliminary analysis and research recommendations: a great choice if you’ve hit a brick wall in your research and could use some expert guidance. GENEALOGY GEMS EXCLUSIVE OFFER: Go to www.legacytree.com/genealogygems and use coupon code GEMS100to save $100 off your purchase of research services (expires 4/30/17).
It’s the summer of 1938, and wealthy young socialite Miss Layla Beck is now on the dole as a WPA worker, assigned to write a history of the small town of Macedonia, West Virginia. As she starts asking questions about the town’s past, she is drawn into the secrets of the family she’s staying with?and drawn to a certain handsome member of that family. She and two of those family members take turns narrating the story from different points of view, exploring the theme that historical truth, like beauty, is often in the eye of the beholder.
Click here to read an introduction to using WPA records for genealogy.
Annie Barrows is also the co-author of The Guernsey Literary and Potato Peel Pie Society. This novel takes place after World War II in a London recovering from the Blitz and an island recovering from German occupation. At the heart of Guernsey is an unlikely love story and the inspiring tale of a community that took care of each other in their darkest days with humor, compassion and good books.
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!
When we are looking at genetic relationships, there are also many ways we can measure them. But ultimately, we want the testing company to tell us how likely it is that a particular individual shares a single, recent common ancestor with us. One factor in this calculation is to take into account the total amount of DNA we share with that match.
AncestryDNA: Click on the match to access the personal profile page for that match. In the second section, under Predicted Relationship, you will see the confidence level. To the right of the confidence level, you will see a grey circle with a little “i” in it. Clicking there will show you the total amount of shared cMs as well as how many pieces of DNA you share.
It is very tempting to think of a cM just like you would think of an inch or a centimeter, and for all practical purposes, that is okay. But it is actually much more complicated than that.
