Dennis Cupitt, of Houston, Texas, passed away on Tuesday, April 21, 2026, at the age of 79, in Webster, TX.

Dennis was born in Pawtucket, Rhode Island as the second of three children to Thomas and Lu Cupitt on February 8, 1947. He is survived by his wife Margaret; brother Larry Cupitt and his wife Mary Marsha Cupitt; sister Carol Cupitt-Parks and her husband Richard Parks; son Sean Cupitt and daughter-in-law Amy Cupitt of League City, TX; son Jason Cupitt and daughter-in-law Kara Cupitt of Burnet, TX; son Brandon Cupitt and daughter-in-law Katie Cupitt of League City, TX; grandsons Stephen and Joshua Cupitt, Will and Jude Cupitt, Ryker Cupitt, and granddaughters Britten Cupitt, Abby Cupitt, and Molly Cupitt.

Dennis’ family moved from Rhode Island to the Pensacola, Florida, area when he was only four. There he grew up riding his bike, playing baseball, and caring for his dog, Waggie. He graduated from Escambia High School and attended University of Florida, where he obtained both a BS in Aerospace Engineering and a MS in Mechanical Engineering. He married his high school sweetheart, Margaret, in Gainesville, in 1968.
He moved with his wife to Fort Walton Beach, FL and began his career in aeronautical and aerospace engineering. With a family now of a wife and three young boys between the ages of 11 months and 3 years, he moved once again; this time to Houston, TX.
As they grew, the boys all stayed close to Houston, straying as far as the Austin area, which was fantastic for Dennis and Margaret to travel, often with their dog Max in tow, to see the children and grandchildren.

Dennis placed the utmost value on his family and Christian faith. Dennis and Margaret attended Gloria Dei Lutheran Church in Nassau Bay, TX, where he ensured that his children developed a lifelong Christian faith, and modeled Christian behavior in both word and deed.

He will be remembered as a devoted husband, father, and grandfather; peace-maker; loving abundantly and increasing joy wherever he went.

In lieu of flowers, please consider making a donation to help provide food and dignity to our local population at Crossroads https://crossroadsatparkplace.org/how-to-help/donate.html