Politics and government 16 History 9 Description and travel 4 Philadelphia (Pa.)--Politics and government--20th century 4 Social conditions 4 Books and Bookselling--19th Century 3 Pennsylvania--History--Colonial period, ca. 1600-1775 3 more ... Pennsylvania--Politics and government--20th century 3 Philadelphia (Pa.)--City government--20th century 3 Philadelphia (Pa.)--Officials and employees 3 Philadelphia (Pa.)--Social conditions--20th century 3 Social life and customs 3 Travel 3 AIDS (Disease) 2 Affirmative action programs--Government policy--United States--History--20th century 2 Booksellers and bookselling -- Pennsylvania -- Philadelphia 2 Campaign management--United States 2 Consumer activism--20th century 2 Descriptions et voyages 2 Diaries--19th century 2 Diaries--20th century 2 Diplomats 2 Duty 2 Economics--19th century 2 Elections--United States--Planning 2 Family life--Pennsylvania--20th century 2 Family life--Personal correspondence--20th century 2 Finance--Pennsylvania--Philadelphia--18th century 2 Gay rights--United States 2 Historic buildings--Pennsylvania--Philadelphia 2 Insurance companies--United States 2 Labor unions 2 Municipal officials and employees--Pennsylvania--Philadelphia 2 Museums--Pennsylvania--Philadelphia--20th century 2 Pennsylvania--History 2 Pennsylvania--History--1775-1865 2 Philadelphia (Pa.)--City planning 2 Philadelphia (Pa.)--History--20th century 2 Philadelphia--Politics and government--elections and campaigns 2 Philanthropy--Philadelphia--20th Century 2 less ...