Resources:
- http://www.indianafreedomtrails.org/
- https://secure.in.gov/dnr/historic-preservation/learn-about-topics/underground-railroad/freedom-trails/
- https://secure.in.gov/dnr/historic-preservation/learn-about-topics/underground-railroad/underground-railroad-initiative/
- https://www.fs.usda.gov/detailfull/wayne/home/?cid=fsm9_006142
- https://www.tribstar.com/features/valley_life/valley-viewer-indiana-freedom-trails-shares-stories-of-underground-railroad-hoosier-heritage/article_60125777-bdf9-591a-a079-71f72d3e1c63.html