Abstract: Papers of M.V. O'Shea, an author, lecturer, and professor of education at the University of Wisconsin from 1897 until his death in 1932. The records document O'Shea's professional career and his research and writings, including his book Tobacco and Mental Efficiency (1926). Present are class plans, notebooks of observations on educational systems and children, papers and articles written by O'Shea, professional correspondence, personal correspondence, and biographical material.