This thesis examines efforts by the citizens of Prince George's County, Maryland to protect and preserve local historic sites significant to African American history. Since the early 1980s, preservationists in Prince George's County have recognized the importance of -- and made specific efforts to find, document and preserve -- sites that tell the story of African American life in the county. Using three case studies, Abraham Hall, Rosenwald Schools and the Butler House, this thesis demonstrates how preserving African American historic sites became a priority in Prince George's County, due to both a shift in local demographics and to changing practices in the field of historic preservation nationwide.