The primary function of the Special Collections Department at the Williamson County Public Library is to foster research by providing researchers access to materials while ensuring their longevity. Preservation is a key component in the Special Collections Department’s oversight of these specialized materials. Special Collections items at Williamson County Public Library focus on Local History, Genealogy, Family History, and Civil War research. Materials include many formats: e.g., books, microfilm, manuscripts, photographs, maps, digital media and more.