Commemorated on 1 plaque
Robert Mara Adger (1837-1910). Businessman, activist, bibliophile lived here. Director, Philadelphia Building & Loan Assn., pioneering Black firm. Amassed and donated a major collection of rare books, pamphlets on Blacks, antislavery. Founded Afro-American Historical Society.
823 South St. (at Darien St.), Philadelphia, PA, United States where they was