William Horatio Barnes, "Roderick R. Butler," Biographies of Members of the House of Representatives of the Forty-third Congress (W.H. and O.H. Morrison, 1874), pp. 77-80.
William S. Speer, "Hon. Roderick Random Butler," Sketches of Prominent Tennesseans (Genealogical Publishing Company, 2010; originally published 1888), pp. 50-52.