Rough Boundries of pre-Unigov Indianapolis. Does NOT include independent enclaves
File:Marion_County_Indiana_Incorporated_and_Unincorporated_areas_Indianapolis_city_(balance)_Highlighted_1836003.svg - Original Marion County Map Creative Commons 4.0 Sharealike

Source of Traced boundries - https://indianamemory.contentdm.oclc.org/digital/collection/p15078coll8/id/2420
Own work
IndianapolisWikipedian