Wilmer D. “Sonny” Coston, a resident of Greenwell Spring, LA, passed away July 25, 2021 at the age of 90. He was born November 24, 1930 in Port Hudson, LA. He is survived by his wife of 69 years, Odessa Coston; sons, Ken Coston, Steve Coston (Tina); daughter, Debbie Coston Landaiche (Darby); sisters, Leola Keskinen, and Lillian Kay Spiers; grandchildren, Kenny Coston, Robbi Sidyakin, Cody Coston, Chad Coston, Amy Coston, Jay Landaiche, and Cale Landaiche; 12 great-grandchildren; and one great-great-grandchild. He is preceded in death by his parents, Hullen and Beneita Coston; son, Mark “Bubba” Coston; brother, Marlin Coston; and sister, Ina Joy Meyers. The visitation will take place at Greenoaks Funeral Home, 9595 Florida Blvd. Baton Rouge, LA 70815, on Saturday, July 31, 2021, from 8:30 am until time of service at 10:00 am. Interment is to follow at Greenoaks Memorial Park. Pallbearers will be Cody Coston, Chad Coston, Jay Landaiche, Cale Landaiche, Darby Landaiche, and Darryl Garrett. In lieu of flowers, please consider a memorial donation to St. Jude Children’s Hospital.