Philip Quandt Obituary

With heavy hearts, we announce the death of Philip Quandt of Centralia, Illinois, who passed away on March 9, 2026 at the age of 74. Leave a sympathy message to the family on the memorial page of Philip Quandt to pay them a last tribute.

He was predeceased by: his parents, Clarence Quandt and Helen Quandt (Kleiss); his wife Glenda "Gay" Geiler; his in-laws, Harry and Dolly Geiler; his siblings-in-law, Bob Geiler, Betty, Ershal Jenkins, Joyce and Lawrence Potter; his daughter-in-law Janet Casseday; and his nephew Kory Langenfeld.

He is survived by: his sons, Mike Casseday (Tammy) of Centralia, Bart Casseday (Jenita Colclasure) of Farina, Shane Quandt (Helen) of Steelville and Eric Quandt (Melissa) of Walnut Hill; his grandchildren, Adam Casseday, Amber Casseday, Zachary Cassedy, Leah Diss, Luke Smith, Keegan Quandt and Aria Quandt; his great grandchildren, Hadlea Casseday, Emma Casseday, Freya Casseday and Maisyn Diss; his sisters, Theresa Stiven (Craig) of St. Charles, Benita Langenfeld (Dean) of Centralia, Regina VanGeem (Jim) of Carol Stream and Angela Schnake (Randy) of Irvington; his siblings-in-law, Bryce, Shirley Geiler of Kinmundy and Dorothy Geiler of Kinmundy; and his godsons, Tyson Simmons of Naperville and Derrick Schnake of Mt. Pleasant. He is also survived by nieces, nephews, and cousins.

In lieu of flowers, memorial donations may be made to St. Mary School and/or St. Mary Catholic Church and will be accepted by the Sutherland-Garnier Funeral Home located at 235 North Sycamore Street Centralia, Illinois 62801, (618) 532-3523, who is honored to be of service to Phil's Family.