Builder: Michael Sullivan | Architect: Robert Orr of California
Ground Breaking: March 26, 1926 | Construction completed: Late 1926
First church service: January 1928 | Last Church service: 1971
Casa Grande Mortuary used the building between 1971-1977
The Casa Grande Valley Historical Society purchased the building in 1977 for $125,000
The museum opened at its present site February 14, 1978
Heritage Hall was placed on the National Register of Historic Places on June 15,1978
Heritage Hall is currently used for museum programs and private functions