Saint John's Preparatory Heads, 1857-present

1857-1858 Father Cornelius Wittmann, OSB
1858-1862 Father Benedict Haindl, OSB
1862-1865 Father Othmar Wirtz, OSB
1865-1867 Father Benedict Haindl, OSB
1867-1869 Abbot Rupert Seidenbusch, OSB
1869-1872 Father Wolfgang Northman, OSB
1872-1875 Father Alexius Edelbrock, OSB
1875-1884 Abbot Alexius Edelbrock, OSB
1884-1885 Father Chrysostom Schreiner, OSB
1885-1890 Father Oswald Baran, OSB
1890-1896 Father Herman Bergmann, OSB
1896-1921 Abbot Peter Engel, OSB
1921-1923 Father Virgil Michel, OSB, Dean
1923-1924 Father Lambert Weckwerth, OSB, Dean
1924-1927 Father Walter Reger, OSB, Dean
1927-1928 Father Mark Braun, OSB, Dean
1928-1936 Father Theodore Krebsbach, OSB, Dean
1936-1940 Father Amo Gustin, OSB, Dean
1940-1942 Father Vincent Tegeder, OSB, Dean
1942-1946 Father Philibert Harrer, OSB, Dean
1946-1952 Father Alfred Deutsch, OSB, Dean
1952-1958 Father Stanley Roche, OSB, Dean
1958-1972 Father Gregory Soukup, OSB, Headmaster
1972-1974 Father James Tingerthal, OSB, Headmaster 
1974-1980 Father Alan Steichen, OSB, Headmaster
1980-1988 Brother Linus Ascheman, OSB, Headmaster
1988-1994 Father Tom Andert, OSB, Headmaster
1994-1998 Father Mark Thamert, OSB, President
1998-2006 Father Gordon Tavis, OSB, President
2006-2013 Father Timothy Backous, OSB, Headmaster
2013- Father Jonathan Licari, OSB, Headmaster