The general purpose of the Society is to foster and encourage interest in historic inquiry and study generally, but especially among its members; to collect, preserve and house historic documents and objects, especially those pertaining to Eastern Hillsborough County and the State of Florida; to collect, preserve and house genealogical books and materials to aid genealogical research and further, to encourage and participate in historic preservation.

A museum of historic photographs containing over 55,000 digitized images and an exhibit gallery with a changing exhibit. The Exhibit Gallery is also used for musical performances, fundraising events, and other gatherings.