Debt problems have forced the Fort Des Moines Museum and Education Center board to suspend regular public hours of operation.
The Des Moines Register says the board of directors wants to eliminate $40,000 in debt.
Board president Matthew Harvey says the museum no longer has any paid staffers and is being run by volunteers. He says the board hopes to reopen the museum to regular operation in early June.
Harvey also says the museum would continue to open for scheduled programming and tours and for rental events.
The museum pays tribute to men who attended the U.S. Army's first and only experimental training camp for African-American officers and to the pioneering female members of the Women's Army Auxiliary Corps.