1. Webster's seventh of March speech and the secession movement, 1850, Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: [s.n.] Publication Place: Hanover, N.H., Date: 1923 Format: Book
2. Jefferson Davis's place in history as revealed in his letters, papers, and speeches, Collection: Samuel J. May Anti-Slavery Pamphlet Collection Publisher: The Torgerson Press Publication Place: Jackson, Miss., Date: 1923 Format: Book