Arval, A.M. (1974) The Constitution and American Education. West Publishing Co., St. Paul.
 Leo, P. (1953) Church, State, and Freedom. The Beacon Press, Boston.
 Edgar, W.K. and Clifton, L.H., Eds. (1951) Readings in American Educational History. Appleton-Century-Crofts, New York.
 Lawrence, A.C. (1957) The Republic and the School: Horace Mann on the Education of Free Men. Teachers College Press, New York.