Clarence U. Swain • Trooper – District 9 • Served - May 29, 1950 to August 1, 1959

Trooper Swain was killed in an automobile accident while driving an unmarked radar unit on a road feeding Route 66. A truck pulled out in front of his path and failed to gain speed. In an attempt to avoid striking the truck Trooper Swain swerved into the opposite lane but struck a vehicle head-on. Both he and the driver of the other vehicle were killed. Trooper Swain's partner was injured in the accident.

Trooper Swain had served with the Illinois State Police for nine years and was assigned to District 9. He was a veteran of both WWII and the Korean War. Trooper Swain was survived by his wife and four children.