Jack Rentner (January 24, 1932 – February 11, 2025)
Jack K. Rentner passed away peacefully at home on Feb. 11, 2025. He was 93. He was co-owner of Rentner Marine Service in Chicago with his brother, Paul Rentner. Jack was an avid boater, tinkerer and fixer of many things, truly a "Jack of all trades." He was preceded in death by his wife, Doris, (nee Walhgren), his father, Paul E. Rentner, his mother Helen, (nee Danielsen), and his brother, Paul E. Rentner, Jr. Jack is survived by his children, Verne Rentner (Diane), Valerie Rentner, Janice Ratz (the late Bob),