"Bury the Chains: Prophets and Rebels in the Fight to Free an Empire’s Slaves," By Adam Hochschild, Boston: Houghton Mifflin Company, 2005

"Thomas Clarkson: Friend of Slaves," By Earl Leslie Griggs, Westport, Conn.: Negro Universities Press, 1970

"Thomas Clarkson: A Biography," By Ellen Gibson White, New York: St. Martin’s Press, 1990

"Hero for Humanity: A Biography of William Wilberforce," By Kevin Belmonte, Colorado Springs, Colo.: NavPress, 2002

"The Slave Trade," By Hugh Thomas, New York: Simon & Schuster, 1997