Allen County Public Library
Links to many other resources for doing genealogy research. Click on Research on the Home page and then select Genealogy for a wealth of information.
DAR Library -- Summer 2026: Library is currently closed for restoration; see below
Whether you want to join DAR or not, its resources may help in your genealogical research. While closed, users may access digital collections and microfilm, microfiche, CDs, manuscripts, and file case collections. Also a good resource for how to get started in genealogy.
Search for ancestors in the patriots' files.
Greenbelt Branch, PGCMLS
The Greenbelt Branch of Prince George's County Memorial Library System houses the library of the Prince George's Historical Society in the DeMarr Room. Access is on Saturdays; call ahead to verify access, 301-345-5800. "The Tugwell Special Collection serves as a resource for researchers who are interested in studying city and urban planning, sociology, architecture, American history of the New Deal era, consumer cooperatives and the city of Greenbelt, MD. The mission of the collection is to provide reference materials on those subjects to any interested researcher, whether it be an elementary student studying their hometown or a doctoral student collecting primary sources for a dissertation."
Oxon Hill Branch, PGCMLS
The Oxon Hill branch houses the Sojourner Truth Room, which "offers resources on the African American incorporated towns of Prince George’s County and a fine research collection on African American history." Also from the library's website: "A library card or other identification may be necessary for accessing some materials. A scanner and photocopy machine are available." It also offers resources for recording oral history project. Call ahead to be sure access is available. Click HERE.