*See the type of car used at Safetyville here
An excerpt described General Motors' relationship to the IMA:
GM supported the Industrial Mutual Association (IMA), Flint’s largest institution, which "reflected the paternal and fair view which the General Motor executives had of themselves." The IMA offered lakes and parks, bowling, dancing, parks and sports programs and night study for GM factory workers and their families. Though membership was not required, most workers joined.
Liber "462", Page "214"
28 September 1928
City of Flint
Industrial Mutual Association (IMA)
....4th Avenue...Third Avenue....known....as "Athletic Park"
Signed: William McKeighan, Mayor of Flint
Witnesses: Myrl Goddard, D. E. McCorkill, Catharine Peirce, Blanche Whipple
A picture of Athletic Park can be seen here with the description here.