Charitable organizations--Pennsylvania--Delaware County 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 Family life--Pennsylvania--20th century 1 Family life--Personal correspondence--20th century 1 more ... Nonprofit organizations--Pennsylvania--Delaware County 1 Philanthropy--Philadelphia--20th Century 1 Philanthropy--Philadelphia--21st Century 1 less ...