Behind the Scenes; or, Thirty years a slave, and Four Years in the White House

The Great Conspiracy, Volume 3

The Slavery Question

Slavery: letters and speeches

Memorial Address on the Life and Character of Abraham Lincoln Delivered at the request of both Houses of Congress of America

Lincoln; An Account of his Personal Life, Especially of its Springs of Action as Revealed and Deepened by the Ordeal of War

Charles Sumner: his complete works, volume 10 (of 20)

Abraham Lincoln, a History — Volume 02

American slavery, and the means of its abolition

Walker's Appeal, with a Brief Sketch of His Life And Also Garnet's Address to the Slaves of the United States of America

The Perfect Tribute

Slavery and four years of war