01/17/2026
Gary Blain Cook was born on June 11, 1962, in Guymon, Oklahoma, to Carroll “Cookie” and Sherely Cook. He passed from this life into his heavenly home on January 16, 2026, at BSA Hospital in Amarillo, Texas.
Gary was raised in Keyes, Oklahoma, and graduated from Keyes High School in 1980. During his school years, Gary gained the nickname “Geetz,” and it stayed with him for the rest of his life.
Everyone who knew and loved him called him Geetz—a name that showed the closeness, warmth, and friendships he carried throughout his life.
After graduation, Gary began his working career with Kinzer Oil Company. He later went to work for Chris Hunt Water Hauling. When his family purchased the business, Gary played an important role in helping run the company until it was sold to MidCon in 2015. Gary continued working for MidCon until 2022. That year, he began working for the Cimarron County District 3, where he served as a foreman. He truly enjoyed this time in his life, especially working alongside friends and family, and he took pride in serving his community.
On June 11, 2005, Gary married his best friend, Jeannie (Overton) Perky. Through this marriage, he not only became a loving husband, but also a father to three teenagers. It takes a special man to step into a family and fully embrace that role, and Gary did so with love and grace. As a dad, he was there for every milestone—graduations, weddings, and countless moments in between. He had the honor of walking both of his daughters down the aisle, welcoming each grandchild into the world, and standing beside his family through all of life’s important moments. Gary was a devoted husband, dad, and Papa to a family who loved him deeply.
Gary was a faithful member of Keyes Baptist Church throughout his life. He spent many years driving a bus to Falls Creek, where he made a lasting impact on students and sponsors. He also served his community as a longtime member of the Keyes School Board and volunteered with the Keyes Volunteer Fire Department for more than ten years. Gary had a true servant’s heart and was always ready to help when needed.
Gary’s greatest joy was his family, and his hobbies often followed whatever his children, grandchildren, nieces, or nephews were involved in. He was a dedicated sports fan and rarely missed a chance to support them at activities across Oklahoma and Kansas City. Following his family’s activities, he became a devoted fan of a wide range of sports, from karate and soccer to ice skating and gymnastics. On one trip to Kansas City to watch his granddaughters cheer, he joked that it was the first time he had ever been to a football game and didn’t watch the game, just to support his cheerleader—perfectly capturing the devoted Papa he was. When he could not be there in person, he followed along through live streams—often watching more than one game at a time. You could usually count on one of those games being a Ho**er or Mooreland game as he cheered on his great-nephews. Gary also followed college and professional sports closely, with a special love for the OU Sooners. In addition to sports, he enjoyed trap shooting and riding motorcycles. When SiriusXM first became available, Jeannie gifted him a radio for his truck so he could listen to sports talk, which brought him great joy.
Gary was preceded in death by his parents, Carroll and Sherely Cook; his father-in-law, Jasper Overton; and his son-in-law, Kevin Lopez. He is survived by his wife, Jeannie Cook; his children, Marsha and Joseph Williams, Michelle Lopez, and Mitchell and Sara Perky; his grandchildren, Landon and Jordan Perky, and Alyssa, Tyson, Ryleigh, and Dylan Williams; his siblings, Donnie and Julie Cook, and Lynn and Brent Jones; along with many nieces, nephews, great-nieces, and great-nephews.
Gary leaves behind a legacy of faith, service, and deep love for his family. While his family mourns his passing, they find peace in knowing Gary is now at rest in his heavenly home and will be reunited with them one day.
Visitation will be held on Tuesday, January 20, 2026, from 5:00 p.m. to 7:00 p.m. at Henson~Novak Funeral Home in Boise City.
Funeral Services will be held on Wednesday, January 21, 2026, at 10:00 a.m. at The First Baptist Church of Keyes with Matt Montoya officiating. Interment to follow at Willowbar Cemetery.
Memorial Contributions may be made in Gary’s name to the Cimarron Trap Club.
All contributions will be accepted by the Funeral Home C/O Henson-Novak Funeral Directors P.O. Box 1306, Guymon, Oklahoma 73942.
Friends and family may sign the online guest book, leave an online condolence or upload a favorite picture to www.hensonnovak.com.