Donald Ellis Gregory entered his heavenly home on Sunday, January 25, 2026, at the age of 83. Arrangements are entrusted to the care of Mobley-Groesbeck Funeral Service of Sand Springs.

Funeral service celebrating Donald's life will be held at 1 p.m., Thursday, January 29, at the Jim Groesbeck Memorial Chapel at Mobley-Groesbeck Funeral Service, with Pastor Kevin Bryan officiating. The service may be viewed live at https://webcast.funeralvue.com/events/viewer/119490

Viewing will be held at the funeral home on Wednesday from 12 to 8 p.m., with the family greeting friends from 5 to 7 p.m.

Donald was born on September 1, 1942, in Mannford, Oklahoma, to William Jackson Gregory and Lora Opal (Buchanan) Gregory. He grew up in Tulsa along the Sand Springs Line and attended Tulsa Edison High School. With a deep sense of responsibility and love for his family, Donald left school in the 11th grade to help care for them—an early reflection of the selflessness and work ethic that defined his life.

Donald was a hard worker from the very beginning. He worked at Empire Foundry, helped build Brad's Auto Parts stores, and later began a long career with PepsiCo, where he dedicated many years of service before retiring in 2012. No matter the job, Donald gave his all and took pride in doing things the right way.

At his brother's wedding, Donald met the love of his life, Diana Flemings, the bride's sister. The two were married on June 5, 1965, in Tulsa, beginning a lifelong partnership rooted in love, family, and devotion. They made their home along the Sand Springs Line, living in several homes over the years—most notably the one they shared for 46 years, where countless memories were made.

Donald's grandchildren were truly the joy of his life. He loved watching his grandson play ball and cherished every moment spent with them. He took great pride in his yard, tending to it with care and satisfaction, and he was known far and wide for being incredibly handy. If something was broken, Donald could fix it—and if someone needed help, Donald was the one they called. He always found a solution, always stayed busy, and was happiest when lending a hand.

Family meant everything to Donald. He loved family gatherings, celebrating birthdays together, and camping trips filled with laughter, stories, and togetherness. He was a second dad to many of his children's friends, always looking out for others and offering help without hesitation. Donald was hardworking, family-loving, generous, handsome, and yes—stubborn in the way only someone with strong convictions and a big heart can be.

Donald was preceded in death by his beloved wife, Diana Gregory; his parents; and his siblings, Karl Gregory, Billy Gregory, Barbara Duck, and Doris Barnes.

He is survived by his children, Michelle Ogle and husband Jeff, and Aaron Gregory and wife Jami; his treasured grandchildren, Paige Brownlee and fiancé Glenn Apple, Veronica Gregory, and Jaxon Gregory; his sisters-in-law, Phyllis Gregory and Shirley Gregory; and many nieces and nephews, whom he loved as if they were his own.

Donald's legacy is one of hard work, kindness, and unwavering love for his family. He will be deeply missed and forever remembered by those whose lives he touched.