Jackson Purchase Images ~ If you are researching in the Jackson Purchase area, you must visit this site... it is wonderful!
1895 US Atlas ~
This is a wonderful site, with lots of maps, names of towns and cities and where they are located, etc. Be prepared tho... the files are huge and will take a while to download.
The 1891 Grain Dealers and Shippers Gazetteer ~ Another series of maps by Pam Rietsch like the one above. Again, be prepared for a long loading wait... these files are huge, but well worth the wait.