John C. Casper Obituary
It is with great sadness that we announce the death of John C. Casper (Green Bay, Wisconsin), who passed away on October 25, 2025, at the age of 75, leaving to mourn family and friends. Family and friends are welcome to leave their condolences on this memorial page and share them with the family.
He was predeceased by: his parents, Felix Casper and Martina Casper; his siblings, Lavern Casper and Eileen Birschbach; and his brothers-in-law, Ron Birschbach and Fred Stephany.
He is survived by: his sons, Michael Casper (Irene) and Doug Casper (Christina); his grandchildren, Cal, Liv and Mya; the mother of his children Joyce Casper; his siblings, Elmer Casper (Susan), Rose Criter (Jerry), Patricia Stephany and Janet Griffiths (Gary); and his sister-in-law Janice Casper. He is also survived by nieces, nephews.
