

Mark worked for many years as a computer numerical control machinist for BRB, taking great pride in his craftsmanship and work ethic. Known for his precision and patience, he was the kind of person who could fix just about anything — both at work and in everyday life. His coworkers and friends respected not only his talent but also his honesty and willingness to lend a hand. Beyond his career, he gave much of his time and heart to his church community. He was a member of the Tahlequah First United Methodist Church and would volunteer wherever he was needed, whether cooking for church events or serving the hungry at Feed My Sheep on Thursday nights.
Mark enjoyed spending his free time outdoors, casting a fishing line on a quiet morning or spending weekends at the lake or river. He loved riding his e-bike or playing with his dogs, who were never far from his side. More than anything, he loved his family and looked forward to grilling up something delicious for a get-together. He was an avid Sooners fan and never missed an OU football game.
Those who knew Mark will remember his kindness, humor, and steady presence. His life was a reflection of gratitude, generosity, and faith — values that continue to inspire all who had the privilege of knowing him. Mark was called to his eternal rest on November 3, 2025, surrounded by family and love. He will be remembered for his easy smile and the joy he found in life’s simple pleasures.
He has gone on to join his grandparents, parents, Don and Wanda Marshall, one sister, Billie Marshall and granddaughter, Denver Pierce-Hogshooter.
Those left to cherish his memory include his wife, Krisstee Pierce-Marshall, three sons, Kyle Marshall of San Antonio, TX, Cameron Marshall and wife Kelsie of Houston, TX and Jonathan Hefflin of Huntington, CA, three daughters, Christyann Marshall, Cheyenne Marshall and Jordan Dry, all of Tahlequah, OK, two step-daughters, Taylor Peirce and Paris Pierce also of Tahlequah, OK. He leaves two brothers, Donnie Marshall and wife Shelly of Stilwell, OK and Tommy Marshall and wife Teresa of Arizona and two sisters, Carolyn Eubanks and husband Darrel of Stilwell, OK and Belinda Hummingbird and husband David of Missouri. His legacy lives on through his nine grandchildren, Birdi Hefflin, Knox Dry, Karson Dry, Archie Marshall, Miles Adams, Aspen Pierce- Rodriguez, Capri Pierce, Camryn McMillen and Casey McMillen as well as many nieces, nephews, friends and loved ones too numerous to mention.
A memorial service will be held on November 7, 2025 at 1:00 pm at the Tahlequah First United Methodist Church with Pastor Shana Dry officiating.
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