John Mitchell

Historical marker location:

525 W Dakota St, Spring Valley, Illinois

( Marker is on West Dakota Street (U.S. 6) just east of North Strong Avenue, on the right when traveling east.)

Marker installed: 1966

1870-1919.

The Illinois State Police, founded in 1922, is one of the oldest state police agencies in the United States. The agency is responsible for enforcing state laws, protecting state property, and providing security for the governor and other state officials.