Recently I’ve seen two calls for volunteers to help “georeference” old maps. Basically, you’re tagging the maps in a way similar to tagging photos of people on social media sites. This makes finding old maps online easier and more accurate. It also allows sites to overlay the old and new maps. “Some places have changed significantly or disappeared completely, creating a puzzle that reveals an exciting contrast,” explains the British Library.
These two sites are asking for volunteers:
The British Library Online Gallery. The British Library is asking for volunteers to help georeference 50,000 maps it’s put online. Go right to the site and you’ll see the invitation to help on the home page. You’ll also see that you can click on a tab to search maps that are already georeferenced! The British Library tells its volunteers: “Your name will be credited, and your efforts will significantly improve public access to these collections. Contributors can see the results of their work, as well as the progress of the pilot and other participants, and the top contributor will be publicly announced.”
David Rumsey Historical Maps. This mega-maps site is also looking for volunteers to help add locations to its online map collections. On the home page, click on the left where it says Georeferencer: Help Add Location to Maps.
We blog about maps a lot here at Genealogy Gems. To learn more about using old maps online and for genealogy, go to our home page and search on the Maps category on the lower left side of the page. Additionally, Genealogy Gems Premium members have access to full-length video classes like these:
- 5 Ways to Enhance Your Genealogy Research with Old Maps;
- Google Earth for Genealogy (Identify an old photo location);
- Sanborn Fire Insurance Maps and
- Time Travel with Google Earth.
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