Hayes went on to teach at Miami University in Oxford, Ohio and the University of Illinois. He wrote many books and articles including, Introduction to the Study of Sociology (1915) and Sociology and Ethics (1921). Hayes attended the first meeting of the American Sociological Association in 1905 and became one of its most influential founding members. He served on the Society’s Committee of Ten, selected to create a universal model for schools’ undergraduate introductory sociology courses. Hayes was elected Second Vice President of the American Sociological Association in 1919, First Vice President in 1920, and became its eleventh President in 1921. He died in Urbana, Illinois in 1928.