United States--History--Civil War, 1861-1865--Personal Correspondence 36 Family life--Personal correspondence--19th century 23 Genealogy 21 Genealogical correspondence 13 Personal Correspondence 13 Family life--Personal correspondence--20th century 11 World War, 1939-1945 11 more ... United States--History--Civil War, 1861-1865--Military Correspondence 10 World War, 1914-1918--Personal correspondence 10 Family life--Personal Correspondence--18th century 9 United States--History--Revolution, 1775-1783 9 Family life--Pennsylvania--20th century 8 Spouses--Correspondence-–20th century 8 United States--History--Revolution, 1775-1783--Military Correspondence 7 World War II, 1939-1945--Personal Correspondence--Home front 7 Family life--Pennsylvania--Philadelphia 6 Pennsylvania--Genealogy 6 Spouses--Correspondence--19th century 6 United States--History--Revolution, 1775-1783--Personal Correspondence 6 Family life--19th century 5 Family life--Pennsylvania--19th century 5 Genealogy & local history 5 United States--History--Civil War, 1861-1865--Camp Life 5 World War, 1939-1945--Personal narratives, American 5 Business Correspondence--19th century 4 Genealogists 4 Historical Society of Pennsylvania--Correspondence 4 Husband and Wife--Correspondence 4 Schools--Pennsylvania--Records and correspondence 4 Social life and customs--19th century 4 Social life and customs--Upper class--19th century 4 United States--History--Civil War, 1861-1865--Campaigns 4 United States--History--Civil War, 1861-1865--Personal narratives 4 World War, 1939-1945--Correspondence 4 Artists--Correspondence 3 Courtship and marriage--19th Century 3 Family life--Upper Class--Pennsylvania--Philadelphia--20th century 3 French--Genealogy 3 International trade--19th century 3 Love-letters 3 less ...