When Catherine M. Deppiesse was born on 28 July 1920, in Random Lake, Sheboygan, Wisconsin, United States, her father, Jacob J. Deppiesse, was 40 and her mother, Marie Nowack, was 25. She married James R. Bemis on 11 May 1941, in Random Lake, Sheboygan, Wisconsin, United States. They were the parents of at least 1 son. She died on 3 November 2003, in Iron Mountain, Dickinson, Michigan, United States, at the age of 83, and was buried in Iron, Michigan, United States.