"Appletons' Cyclopaedia of American Biography, Volume I, Aaron-Crandall." In Appletons' Cyclopaedia of American Biography, Volume I, Aaron-Crandall, edited by Wilson, James Grant and John Fiske. New York: D. Appleton & Co., 1888.
Kasten, Marie A. Dictionary of American Biography. Base Set. American Council of Learned Societies, 1928-1936. Reproduced in <cite>Biography Resource Center</cite>. Farmington Hills, Mich.: Thomson Gale, 2006. http://www.galenet.com/servlet/BioRC, 1928.
Allen, Gay Wilson. The Solitary Singer: A Critical Biography of Walt Whitman. New York: MacMillan, 1955.
Whitman, Walt. "Letter to W.C. or F.P. Church, August 11, 1867." Walt Whitman: The Correspondence 1, (1961): 336.
Whitman, Walt. "Letter to F.P. and W.C. Church, December 30, 1867." Walt Whitman: The Correspondence 1, (1961): 354.
Whitman, Walt. "Letter to W.C. and F.P. Church, September 7, 1867." Walt Whitman: The Correspondence 1, (1961): 337-338.
Whitman, Walt. "Letter to W.C. Church, August 7, 1867." Walt Whitman: The Correspondence 1, (1961): 335-336.
Whitman, Walt. "Letter to F.P. and W.C. Church, October 13, 1867." Walt Whitman: The Correspondence 1, (1961): 343.
Lause, Mark A. The Antebellum Crisis and America's First Bohemians. Kent, OH: Kent State University Press, 2009.