Spouses--Correspondence--19th century 2 Antietam, Battle of, Md., 1862 1 Appomattox Campaign, 1865 1 Chinese Americans 1 Compromise of 1850 1 Family life--Pennsylvania--18th century 1 Family life--Pennsylvania--19th century 1 more ... Family life--Pennsylvania--20th century 1 Gettysburg, Battle of, Gettysburg, Pa., 1863 1 Korean War, 1950-1953 1 Mexican War, 1846-1848 1 Military Order of the Loyal Legion of the United States 1 Nez Perce Indians--Wars, 1877 1 Quakers--Pennsylvania--18th century 1 Scott, Dred 1 Sioux nation 1 Slavery 1 Spouses--Correspondence--18th century 1 Spouses--Correspondence-–20th century 1 United States--History--Revolution, 1775-1783 1 United States--Latin American relations 1 Wilmot proviso 1 World War, 1939-1945 1 less ...