Genealogy 22 Family life--Pennsylvania--20th century 8 Family life--Personal correspondence--20th century 8 United States--History--Revolution, 1775-1783 8 African American families 7 African Americans 7 Genealogical correspondence 7 more ... History 7 Child welfare 6 Pennsylvania--Genealogy 6 Social conditions 6 World War, 1939-1945 6 African Americans--Societies, etc 5 Centennial Exhibition (1876 : Philadelphia, Pa.) 5 Family life--Pennsylvania--19th century 5 Family life--Personal correspondence--19th century 5 Genealogy & local history 5 Health and hygiene 5 Pennsylvania--History--Colonial period, ca. 1600-1775 5 Spouses--Correspondence-–20th century 5 AIDS (Disease) 4 African Americans--Pennsylvania--Societies, etc 4 Charities 4 Children 4 Family life--Pennsylvania--Philadelphia 4 Family life--Upper Class--19th century 4 Genealogy--Sources 4 International trade--18th century 4 Medicine 4 Spouses--Correspondence--19th century 4 Theater--Pennsylvania--Philadelphia 4 Voyages and travels 4 African Americans--Pennsylvania--Philadelphia--Societies, etc 3 Artists--Pennsylvania--Philadelphia 3 Benevolent Societies--Pennsylvania--Philadelphia--20th Century Child Welfare 3 Books and Bookselling--19th Century 3 Business--History--Pennsylvania--Philadelphia--20th century 3 Charitable Organizations--Philadelphia 3 Child Welfare-Philadelphia 3 Diaries--19th century 3 less ...