Philadelphia (Pa.)--Politics and government--20th century 3 Affirmative action programs--Government policy--United States--History--20th century 2 Business and manufacturing--Pennsylvania--Philadelphia--20th century 2 Family life--Personal correspondence--20th century 2 Insurance companies--United States 2 Pennsylvania--Politics and government--20th century 2 Philadelphia (Pa.)--City government--20th century 2 more ... Philadelphia (Pa.)--City planning 2 Philadelphia (Pa.)--Officials and employees 2 Shipping--Pennsylvania--Philadelphia 2 Slavery 2 Academy of Natural Sciences--Philadelphia (Pa.) 1 Accounts--18th century 1 Accounts--19th century 1 Advocacy organizations--Philadelphia--20th century 1 American Bar Association 1 American Friends Service Committee 1 Arbitration (Administrative law)--United States 1 Art Historians--United States--20th century 1 Art and artists--20th century 1 Art and artists--Pennsylvania--Philadelphia 1 Art, American--18th century 1 Artists--Pennsylvania--Philadelphia--20th century 1 Asociacion Nacional Pro Personas Mayores (U.S.) 1 Autobiography--Pennypacker, Samuel W. 1 Banks and Banking 1 Banks and banking--Pennsylvania 1 Banks and banking--Pennsylvania--Philadelphia 1 Banks and banking--Pennsylvania--Philadelphia--History 1 Banks and banking--Pennsylvania--Philadelphia--History--18th century 1 Banks and banking--Pennsylvania--Philadelphia--History--19th century 1 Billy Graham Evangelistic Association 1 Biography 1 Blue Cross of Greater Philadelphia 1 Built environment--Pennsylvania--Philadelphia--20th century 1 Bureau of Municipal Research (Philadelphia, PA) 1 Business mergers and acquisitions--20th century 1 Business--History--Pennsylvania--Philadelphia--18th century 1 Business--History--Pennsylvania--Philadelphia--19th century 1 Business--History--Pennsylvania--Philadelphia--20th century 1 less ...