Fr. Ardolf was ordained in February 1964 for the Diocese of New Ulm.
Fr. Ardolf’s assignment history:
- Associate, Holy Trinity, Winsted, 1964-1970
- Associate, Cathedral of the Holy Trinity in New Ulm and teaching at Cathedral High School, 1970-1972
- Associate, Holy Rosary, North Mankato and to teaching Holy Rosary School and Loyola High School, 1972-1974
- Administrator, Holy Rosary, North Mankato, 1974-1975
- Pastor, St. Raphael, Springfield, 1975-1982
- Pastor, St. Peter, Canby, 1982-1986
- Pastor, St. Leo, St. Leo, 1985-1986
- Pastor, Holy Rosary, North Mankato, 1986-1998
- Administrator, St. Paul, Nicollet, 1993
- Pastor, St. Mary, Sleepy Eye, 1998-2002
- Pastor, St. Paul, Nicollet, 2002-2012
- Assisting at St. Mary, New Ulm, 2002-2011
Fr. Ardolf retired from assigned ministry in 2012 and died in 2016.