Sanborn map of Crawfordsville, February 1925. Insurance maps were created for fire insurance purposes but are now an invaluable document of a town's past growth and development.
Montgomery County in 1875 (the map highlights fossil beds, sandstone, limestone, coal, mineral springs, crinoids, etc. on a plat of the county).
These images are from the Assessor's Plat Book -- Union Township -- Montgomery County 1895. The individual maps show street-level detail of what was located in Crawfordsville at the end of the 19th century.