History 6 Pennsylvania--History--Colonial period, ca. 1600-1775 4 Periodicals 4 Family life--Pennsylvania--20th century 3 Adoption--Pennsylvania--19th and 20th centuries 2 Charities--Pennsylvania--Philadelphia 2 Child welfare 2 more ... Children 2 Children's literature, Lithuanian 2 Children's periodicals, American 2 Community theater--Pennsylvania--Philadelphia 2 Family life--Personal correspondence--20th century 2 Pennsylvania--History 2 Puerto Rican Week Festival (Philadelphia, Pa.) 2 Racism 2 Slavery--United States--History 2 Spouses--Correspondence--19th century 2 Spouses--Correspondence-–20th century 2 Swiss Americans--New York (State)--New York--Charities 2 Swiss Americans--Societies, etc 2 Theater--Pennsylvania--Philadelphia 2 United States--History--Revolution, 1775-1783 2 World War, 1914-1918 2 Actors and actresses 1 Adoption--1890-1900 1 Adoption--Pennsylvania 1 Affirmative action programs--Government policy--United States--History--20th century 1 African Americans--Georgia 1 African Americans--History--Child Welfare--19th and 20th centuries 1 African Americans--History--Civil War 1 African Americans--Pennsylvania--Philadelphia--Theater 1 American Bar Association 1 American Friends Service Committee 1 Arbitration (Administrative law)--United States 1 Architects--Pennsylvania 1 Architecture--Designs and plans 1 Arithmetic--Textbooks--Early works to 1900 1 Art Historians--United States--20th century 1 Art and Artists--Pennsylvania--Philadelphia--19th Century 1 Art, American--18th century 1 less ...