Have been using Google earth/maps a lot. If you don't already know about it, try out NETR.com. It's an amazing site. I bring up an aerial view of an local address from 2012, then I can split the screen with an aerial view of the same area from 1953. You can then slide the picture left and right to see what's changed. An example is a current elementary school here used to be a ball park for a semi pro baseball team we had back in the 40's and 50's. Gonna try and get out there sometime soon. Keep digging and good luck to you.