Bennett attended the University of Utah, working in the evenings in the office of the Superior Baking Co. In 1923, with about 500 others, he took the Civil Service Examination for Postal Clerk, and as he received the highest rating, was appointed a Clerk and worked full-time in the Money Order & Registry Division in the evenings. This greatly simplified the problem of financing his schooling and supporting his family. He graduated with a B.A. degree in 1925 and was elected to the National Honor Society, Phi Kappa Phi. He went on to receive his M.A. in 1926 in History and Political Science.