Family life--Pennsylvania--20th century 3 Affirmative action programs--Government policy--United States--History--20th century 2 Museums--Pennsylvania--Philadelphia--20th century 2 Pennsylvania--Politics and government--20th century 2 Philadelphia (Pa.)--Politics and government--20th century 2 Swiss Americans--New York (State)--New York--Charities 2 Swiss Americans--Societies, etc 2 more ... Academy of Natural Sciences--Philadelphia (Pa.) 1 Advocacy organizations--Philadelphia--20th century 1 American Bar Association 1 American Friends Service Committee 1 Arbitration (Administrative law)--United States 1 Asociacion Nacional Pro Personas Mayores (U.S.) 1 Banks and Banking 1 Billy Graham Evangelistic Association 1 Blue Cross of Greater Philadelphia 1 Boarding Houses--Women--Philadelphia--Late 19th-20th centuries 1 Boardinghouses--Pennsylvania--Philadelphia 1 Built environment--Pennsylvania--Philadelphia--20th century 1 Bureau of Municipal Research (Philadelphia, PA) 1 Business Correspondence--19th century 1 Business and manufacturing--Pennsylvania--Philadelphia--20th century 1 Business mergers and acquisitions--20th century 1 Business--History--Pennsylvania--Philadelphia--20th century 1 Campaign management--United States 1 Charitable organizations--Pennsylvania--Delaware County 1 Charities--New York (State) 1 Charities--Pennsylvania--Philadelphia 1 City planning 1 City planning and development--Pennsylvania--Philadelphia--20th century 1 City planning--Pennsylvania--Philadelphia--20th century 1 Coal Industry--19th century 1 Coal Industry--20th century 1 Coal mines and mining--Pennsylvania 1 Coal mines and mining--West Virginia--20th century 1 College trustees--United States 1 Consumer activism--20th century 1 Continuing legal education 1 Copper mines and mining--Pennsylvania 1 Coronations--Great Britain--History--20th century 1 less ...