Walter Newton Dinwiddie

Seminole resident, Walter Newton Dinwiddie, 78, passed away Saturday, January 17, 2026, in Seminole.

Walter, the son of Cecil and Lillie (Saxon) Dinwiddie, was born March 30, 1947, in Seminole. He graduated from Bowlegs High School with the class of 1966. Walter proudly served in the US Army during the Vietnam War, during the TET offensive. After returning from Vietnam, he pursued a career in the oilfield with Baroid as a mud engineer, and Donley Drilling Fluids, before venturing out on his own by starting Dinwiddie Drilling Fluids. On September 30, 1983, Walter married Paula Ward, in Paris, Texas. With the decline of the oilfield, Walter then began his career with the Oklahoma Department of Corrections, he worked his way through the ranks, obtained his bachelor’s degree, and then retired as warden, after 24 years of service. Walter enjoyed hunting and fishing, running his dozer, and spending time at the baseball fields, but there was nothing more important to him than spending time with his family. Walter was a faithful member of Hilltop Freewill Baptist Church.

He was preceded in death by his mom and dad, Cecil and Lillie Dinwiddie; and by his younger brother, Keith Dinwiddie.

Walter is survived by his wife, Paula, of the home; son and daughter-in-law, Walt and Melanie Dinwiddie, of McAlester, OK.; daughters and sons-in-law, Dakota and Jesse Miller, of Seminole, OK., and Emma and Eric Spier, of Camden, NC.; six grandchildren, Jennifer Dinwiddie, Matt Dinwiddie, Trae Dinwiddie, Carter Spier, Brody Miller, and Lucas Spier; six great grandchildren, Olivia West, Samara Finley, Allie Dinwiddie, Harley Luttrell, Parker Luttrell, and Miles Dinwiddie; brother and sister-in-law, Carl and Marilyn Dinwiddie, of Seminole; sisters and brother-in-law, Gloria and Jr. Troglin, of Shawnee, OK., and Wanda Guy, of Margate, FL; along with many other family members and friends.

Family visitation will be Wednesday, January 21, from 5:00 P.M. to 7:00 P.M., at Swearingen Funeral Home in Seminole.

Services are Thursday, January 22, 2026, at 10:00 A.M., at Swearingen Funeral Home in Seminole, with Jamie Kirkpartick officiating. Interment will follow at Hilltop Cemetery in Calvin. Services are under the direction of Swearingen Funeral Home, in Seminole.