J. Marion Matherne

J. Marion Matherne, a native of Edgard, LA, and resident of Baton Rouge, LA, passed away peacefully on Monday, October 27, 2025, at the age of 101. Marion honorably served his country in the United States Navy for two years before attending and becoming a proud graduate of Louisiana State University and a lifelong, devoted LSU fan. After earning his degree from LSU, Marion built a long and successful career as a self-employed electrical engineer. Dedicated and hardworking, he continued to work well past retirement, always committed to excellence in his profession. He was a cherished member of his Coffee Call social group, where his warmth, humor, and friendship were treasured. Above all, Marion adored his grandchildren and great-grandchildren, who were truly the light of his life. He was preceded in death by his beloved wife, Rita Lorio Matherne; his parents, Joseph and Justine Matherne; two sisters; eight brothers; and great-granddaughter, Katie Smith. He is survived by his children, Anne Marie Matherne, Ph.D., of Albuquerque, NM; Joan (Daniel) Matherne Grambihler, of Gilbert, AZ; Deacon Paul G. (Vickie) Matherne, M.D., of Biloxi, MS; and Curt M. (Mirian) Matherne, D.V.M., Ph.D., of Morretes, Brazil. He is also survived by his grandchildren, Lauren M. (Matt) Matherne, Brian W. (Amanda) Matherne, Justin M. (Savannah) Matherne, Michael P. (Sandy) Matherne, Renee N. Grambihler, and Steven M. Grambihler; and his great-grandchildren, Nathaniel Smith, Aaron Smith, Jack Matherne, Lily Matherne, Julia Matherne, and Josephine Matherne. Pallbearers honored to serve are Brian Matherne, Michael Matherne, Justin Matherne, and Steven Grambihler. Family and friends are invited to attend visitation at Our Lady of Mercy Catholic Church, 445 Marquette Ave, Baton Rouge, LA 70806, on Thursday, October 30, 2025, from 9:00 a.m. until the Mass of Christian Burial at 10:00 a.m. Burial will follow at Resthaven Gardens of Memory, 11817 Jefferson Hwy, Baton Rouge, LA 70816.