Station Location

(Click on image to enlarge)

I have confirmed my earlier speculation: the building north of the tracks and east of Grand Boulevard was indeed Ainsworth Station, and it was "reportedly named for a railroad executive."

Sources:
♦ Burns, Bob, "Community of lore: Although never incorporated, Ainsworth has a colorful history," Post-Tribune (IN), Apr. 14, 2002.
♦ ———, "Find Ainsworth and Nob Hill, and you can't miss Hobart," Post-Tribune (IN), Apr. 9, 2006.