Jack T. Knuepfer

Jack T. Knuepfer (November 16, 1920 – September 13, 2006) was an American businessman and politician.

Born in Chicago, Illinois, Knuepfer went to Oak Park High School. During World War II, he served in the United States Army; prior to the United States entering World War II, Knuepfer was an ambulance driver for the British Army. Knuepfer went to Carlton College and received his master's degree in business from University of Chicago. He worked for his family's machine tool business: General Engineering Works in Elmhurst, Illinois.

He served on the Elmhurst City Council. Then, in 1965, Knuepner served in the Illinois House of Representatives and was a Republican. From 1967 to 1975, Knuepfer served in the Illinois State Senate. From 1978 to 1990, Knuepfer served as chairman of the DuPage County, Illinois Board of Commissioners. Knuepfer died at Elmhurst Memorial Hospital in Elmhurst, Illinois.

A through arch bridge that spans the Canadian National Railway tracks in West Chicago, Illinois is named after Knuepfer. The bridge is part of the Illinois Prairie Path and was completed in 1990. It won the American Institute of Steel Construction Prize Bridge Competition Award of Merit.