Philadelphia (Pa.)--City planning 3 Family life--Pennsylvania--20th century 2 Legal Documents--19th century 2 Legal issues 2 Mayors--Pennsylvania--Philadelphia 2 Municipal officials and employees--Pennsylvania--Philadelphia 2 Pennsylvania--History--Colonial period, ca. 1600-1775 2 more ... Philadelphia (Pa.)--City government--20th century 2 Philadelphia (Pa.)--Civic improvement 2 Philadelphia (Pa.)--History--20th century 2 Philadelphia (Pa.)--Officials and employees 2 Philadelphia (Pa.)--Politics and government--20th century 2 Philadelphia (Pa.)--Social conditions--20th century 2 Slavery 2 United States--History--Revolution, 1775-1783 2 Urban renewal--Pennsylvania--Philadelphia 2 Women's history--Pennsylvania--Philadelphia 2 Books and Bookselling--19th Century 1 Boundary disputes 1 Campaign management--United States 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Charities--Pennsylvania--Philadelphia 1 City planning--Pennsylvania--Philadelphia 1 Civil rights movements 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 Compromise of 1850 1 Department stores 1 Department stores--Pennsylvania--Philadelphia 1 Depressions--1929--Pennsylvania--Philadelphia 1 Discrimination in housing 1 Education, Urban--Pennsylvania--Philadelphia 1 Education, Urban--United States--Administration 1 Education--United States--History--20th century 1 Education--United States--Management 1 Elections--Pennsylvania--Philadelphia--History--20th century 1 Elections--United States--Planning 1 less ...