Marvin was a supervisor with DuPont until 1995 when he retired after 30 years of service. He was a Deacon at Northside Baptist Church, ordained in 1964 in Vidor, Texas.
He is survived by his wife, Linda Joyce Williamson, of Victoria; son, David Williamson (wife, Starlet) of Cuero; five grandchildren, one great-granddaughter and two great-grandsons.
He is preceded in death by his parents, his brother, Donnis Williamson; sons Kelley Williamson and Todd Williamson, daughter, Amy Kalmus, and grandson, Corey Kalmus.
Visitation will be at 9:30 a.m. Monday, December 16, 2024 at Northside Baptist Church (4100 North Laurent St. Victoria, Texas) with a memorial service to follow at 10:00 a.m. Burial to follow at Memory Garden Cemetery (8891 U.S. 87, Victoria, Texas).