Scope and Contents These are the papers of Mary Katherine Bonsteel Tachau, Ph.D., noted constitutional historian and professor. The collection dates from 1950 to 1990, with the bulk dating from 1965 to 1990. This collection of 24.25 linear feet documents Tachau's teaching career at the University of Louisville, her professional activities, and her scholarly contributions.The papers of Mary Katherine Bonsteel Tachau (1926-1990), noted constitutional historian and professor of history, were donated...