History 8 Genealogy 7 Natural history 5 Philadelphia (Pa.)--Officials and employees 3 Philadelphia (Pa.)--Politics and government--20th century 3 Slavery 3 Women--Societies and clubs 3 more ... World War II, 1939-1945--Personal Correspondence--Home front 3 World War, 1939-1945 3 Campaign management--United States 2 Cemeteries–-Pennsylvania 2 Clubs and Associations--20th Century 2 Clubs and Associations--Pennsylvania--Philadelphia 2 Elections--United States--Planning 2 Family life--Pennsylvania--20th century 2 Family life--Personal correspondence--20th century 2 Genealogical correspondence 2 Hispanic Americans--Housing--Pennsylvania--Philadelphia 2 Hispanic Americans--Public welfare--Pennsylvania--Philadelphia 2 Historic buildings--Pennsylvania--Philadelphia 2 Housing rehabilitation--Pennsylvania--Philadelphia 2 Insurance companies--United States 2 Methodology 2 Mines and mineral resources 2 Municipal officials and employees--Pennsylvania--Philadelphia 2 Nonprofit organizations--Pennsylvania--Philadelphia 2 Philadelphia (Pa.)--City government--20th century 2 Philadelphia (Pa.)--City planning 2 Philadelphia (Pa.)--History--20th century 2 Philadelphia (Pa.)--Social conditions--20th century 2 Philadelphia. Office of Housing and Community Development 2 Philanthropy--Philadelphia--20th Century 2 Political campaigns--Law and legislation--United States 2 Political campaigns--Pennsylvania 2 Puerto Rican Week Festival (Philadelphia, Pa.) 2 Quakers 2 Selling cemetery lots –- 20th century 2 Social life and customs 2 Urban renewal--Pennsylvania--Philadelphia 2 War diaries 2 less ...