History 4 Spouses--Correspondence--19th century 4 Slavery 3 Family life--Pennsylvania--20th century 2 Gettysburg, Battle of, Gettysburg, Pa., 1863 2 Musical Fund Society of Philadelphia 2 Politics and government 2 more ... Quakers--Pennsylvania--18th century 2 Railroad--Construction 2 Regimental histories 2 Sioux nation 2 Slavery--United States--History 2 United States. Army of the Potomac 2 United States. Army. Corps of Engineers--History--19th century 2 9th battery 1 African American Presbyterians--Pennsylvania--Philadelphia 1 African American abolitionists 1 African American baseball players--History 1 African American churches 1 African American civic leaders--Pennsylvania--Philadelphia 1 African American educators 1 African American families -- Pennsylvania -- Philadelphia 1 African Americans--Georgia 1 African Americans--History--Civil War 1 African Americans--History--Negro Education--Late 19th Century 1 African Americans--History--Societies--19th century 1 African Americans--Pennsylvania--Philadelphia--Societies, etc 1 African Americans--Social Life and Customs--19th century 1 American wit and humor--Periodicals 1 Antietam, Battle of, Md., 1862 1 Appomattox Campaign, 1865 1 Armenia--History 1 Art and Artists--Pennsylvania--Philadelphia--19th Century 1 Banking law--United States--History 1 Baseball--History--19th century 1 Books and Bookselling--19th Century 1 Campaigns 1 Canals and railroads--19th century 1 Centennial Exhibition (1876 : Philadelphia, Pa.) 1 Charities--Pennsylvania--Philadelphia 1 less ...