- J. B. Carter - was killed in a automobile accident.
July 30, 1923
- Michael Kleist - was killed in a automobile accident.
July 14, 1924
- Alfred P. Vanderkelen - was killed in a boating
accident. November 6, 1928
- Einar Johnson - was shot and killed while attempting
to arrest a poacher who was also shot, but lived. May 17, 1929
- William A. Riebe - was killed when he was struck by a
train. June 19, 1930
- Edgar L. Alderman - was killed in an automobile
accident. July 22, 1933
- Albert Lee - was killed in an automobile accident.
July 18, 1934
- Albert E. Reif - was shot and killed while checking
deer hunters. November 18, 1942
- Mark H. Russell Jr. - was killed in a boating
accident. May 21, 1955
- Robert B. Markle - was killed in an automobile
accident. May 8, 1966
- Neil L. LaFave was a
Wisconsin game technician with special conservation warden
credentials when he was shot and killed by a violator in the
Sensiba Wildlife Area in Brown County on September 24, 1971.
- Andrew A. Krakow - was shot and killed by a 13 year
old boy while assisting the sheriffs department on a domestic
disturbance call. June 5, 1990
- Patrick Douglas Warner - died of a cerebral hemorrhage
after a training exercise. May 24, 1993