[2] At the urging of friends, the Indiana Military Museum was founded by Osborne in 1982 and opened to the public in 1984 on Bruceville Road east of Vincennes.

[7] A major change came in the late 1990s, when the museum realized that it needed to focus on finding a new location.

[9] Shortly thereafter, the museum closed to undergo renovations supported by a grant from the Lilly Endowment.

[5] The museum purchased a site west of Vincennes close to the George Rogers Clark National Historical Park, where it reopened on 31 May 2013.

[8][17] Plans made at the time of the site's purchase call for the construction of a 56,000 sq ft (5,200 m2) building.