Frothingham, O. B. Gerrit Smith, A Biography, 1878.
Frothingham, O. B. Theodore Parker, A Biography, 1874.
Garland, H. A. Life of John Randolph of Roanoke (2 Volumes), 1850.
Garrison, Wendell Phillips and Francis J. William Lloyd Garrison, The Story of his Life, Told by his Children (4 Volumes), 1885, 1889.
Goodloe, Daniel R. Southern Platform, 1855.
Greeley, Horace. The American Conflict (2 Volumes), 1864, 1866.
Green, J. R. A Short History of the English People.
Harris, N. Dwight. History of Negro Servitude in Illinois, and of Slavery Agitation in that State, 1904.
Hart, A. B. Slavery and Abolition (The American Nation Series), 1906.
Helper, H. R. The Impending Crisis in the South. How to Meet it, 1857.