As part of my undergraduate iWorlds class this semester, I assigned students the task of geocoding historic photographs of Lexington, KY. The photos, which are available online in digital format, are housed at the Kentuckiana Digital Library at the University of Kentucky and have metadata that includes street addresses, albeit usually embedded in a paragraph rather than as a separate field.
After aggregating all the students' work, I played around a bit with some kml code and ended up a map of 500+ geocoded historic photographs. I’ve posted the kmz file which can be opened in Google Earth. Click on a placemark and you can see the photograph and a link to the KDL entry. Thanks to Matt Wilson for alerting me to these photos and Deirdre Scaggs for helping us access them easily.