Oliver James Deppen Obituary

With sadness, we share the passing of Oliver James Deppen (Saint Peters, Missouri). Oliver, born on November 17, 1941, passed away on September 29, 2026. Leave a sympathy message to the family on the memorial page of Oliver James Deppen to pay them a last tribute.

He was predeceased by: his parents, Oliver Bernard Deppen and Mary Kathleen Jones; his parents-in-law, Louis R. Reese and Ruth M. Reese; and his brothers-in-law, Karl K. Maxson and Dennis R. Reese.

He is survived by: his wife Gail Deppen; his sons, Jeff Simon, John Deppen (Joe), Guy Simon (Tina) and Richard Deppen (Gabby Munoz); his grandchildren, Becca Simon (Liz Grote), Jenna Simon, Kate Simon (Jacob Ostrander) and Joseph Simon (Leigha Jordan); his great grandchildren, Tracen French and Hartlee French; his siblings, Robert Deppen (Pat), Jane Stobart and John Deppen (Mary); and his sisters-in-law, Wilma Huffman (Murray), Deborah Maxson and Sharon Reese.

Memorial Contributions: In lieu of flowers, memorial donations may be made in Jim's honor to St. Cletus Catholic Church in St. Charles, Missouri.