History 28 Regimental histories 13 Campaigns 8 Spouses--Correspondence--19th century 5 Gettysburg, Battle of, Gettysburg, Pa., 1863 4 Histoire 4 Appomattox Campaign, 1865 3 more ... Slavery 3 Books and Bookselling--19th Century 2 Family life--Pennsylvania--20th century 2 Genealogy 2 Medical Publications--19th century 2 Medical Publications--20th century 2 Publishers and Publishing--Pennsylvania--Philadelphia--19th century 2 Sioux nation 2 Slavery--United States--History 2 Spouses--Correspondence-–20th century 2 United States--History--Civil War, 1861-1865--Personal narratives 2 United States--History--Revolution, 1775-1783 2 United States. Army of the Potomac 2 United States. Army. Corps of Engineers--History--19th century 2 2d corps 1 69th 1 6th Corps 1 Abolitionists 1 African Americans 1 African Americans--Georgia 1 African Americans--History--Civil War 1 American wit and humor--Periodicals 1 Antietam, Battle of, Md., 1862 1 Atlanta Campaign, 1864--Personal narratives 1 Banking law--United States--History 1 Causes 1 Children's diaries, American 1 Chinese Americans 1 Church records and registers--Pennsylvania--18th century 1 Church records and registers--Pennsylvania--19th century 1 Church records and registers--Pennsylvania--20th century 1 Civil War--Colored Regiments 1 Coal Industry--19th century 1 less ...