In short… In OldInsuranceMaps.net it is now possible to georeference maps with only two ground control points, instead of the previously required three. For the time being though, we’re keeping this capability hidden (more about that in thi…
New feature on OldInsuranceMaps.net: authentication via OpenStreetMap! A special thank you to OpenHistoricalMap for helping to fund this development :). As a new user to OIM, you can connect through OpenStreetMap right when you first sign u…
We had two successful and enjoyable georeferencing events earlier this month in New Orleans, thanks again to everyone who came out! About 20 people across the two Tuesday nights. Next time around, we’ll finally mix up the schedule a bit so
Here in New Orleans we are looking forward to two georeferencing events coming right up! For the next two Tuesdays (May 5th & 12th) we’ll be partnering with HistoryForge to host georeference-a-thons at Second Line Brewing, just like we’ve d…
Last month I presented at #Code4Lib: www.youtube.com/live/6nBJ… While preparing the slides, 10 minutes was feeling really short (especially for a new audience) but I reworked some things and I think it’s actually the best introductory talk
Early last month I attended Code4Lib 2026 in Philadelphia, and gave a presentation called Old Maps for New Apps: Making and Using Georeferenced Sanborn Maps at Scale. It was a short one, 10 minutes, and while at first I thought I would be t…
New newsletter platform This email is (hopefully) finding you via my new setup on Micro.blog. So, so you’ll see a different “from” address. Most importantly, unlike before, you cannot reply directly to this newsletter to get in touch. Pleas…
This coming Saturday at 1pm CST I’ll be co-presenting in a workshop at Mapping USA, a free virtual conference organized by OpenStreetMap US. The workshop, Historical Mapping with OpenHistoricalMap, OldInsuranceMaps.net, and Yesterdays will
Herein: Updates on the future of OIM, some good ol' tech improvements, new blog post, and community notes. For new readers, welcome! And here are all past newsletters in case one isn’t enough. In mid-January, I will be leaving my position a…
The “multimask” is a concept in OldInsuranceMaps.net that greatly eases the creation of seamless mosaics from many different georeferenced layers. I recently made some updates to the user interface for this tool, and decided to take the tim…
Over the next couple of weeks we’ll be holding two community georeferencing events at Second Line Brewing in New Orleans. If you are in the area, we hope you can make it! As we have in the past, we’re doing these events in collaboration wit…
Recently I gave a presentation about OldInsuranceMaps.net for I-GUIDE’s Virtual Consulting Office speaker series and I was able to talk a bit more about the technical details of the platform than I have in the past, which was really fun and…