In the 1880s, Gainesville was a prosperous town with a growing population and a downtown that saw many new buildings constructed. The Morton Museum is housed in one of the buildings from that era that housed the City Hall, Fire House and Jail. The building was scheduled for demolition, but was saved from the wrecking ball by Mary McCain and a group of concerned citizens. Because of generous donations from Gladys and Granville C. Morton, the building was saved, restored and now houses the Morton Museum.
The Museum has many artifacts and historical documents related to Gainesville and Cooke County. It is run by the Cooke County Heritage Society.