William Penn "Trey" Adair
Carrollton & Farmers Branch
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William Penn "Trey" Adair, III
Nov 8, 1959 - Sep 8, 2021

William (Trey) Penn Adair III, age 61 of Dallas, passed away on Wednesday, Sep. 8, 2021, due to complications associated with an artificial heart valve. Trey was always quick to credit the "pig valve" and the surgeon that implanted it with extending his life for over two decades during which he was able to live a full life that included travel throughout the U.S. and Canada, the Caribbean, and many international destinations. Those precious years also allowed him to be a huge part of his daughter Brianna's life participating as a parent in support of all of her school activities and eventually as a teacher, coach, and "theater set builder extraordinaire" for the Westwood School in Dallas where he became a full-time member of the teaching staff in 2010.
Trey was born in Tulsa, Oklahoma in 1959 to Mary Jane Shore and William P. Adair, Jr. Trey spent his early years in Madill, Oklahoma, and then attended grade, middle, and high school in Ada, Oklahoma where he was a member of the Ada High Class of 1978. He was also a member of Ada's Boy Scout Troop 4, and one of the legendary Angus McFarlane's over 200 Eagle Scouts. After high school, Trey attended Oklahoma State University earning a B.S. in Mechanical Engineering (1982) and, following a move to Midland, Texas, earned an MBA from the University of Texas (1989). He was a registered Professional Engineer in Texas and Founder/President of Advirotech, Inc., a Dallas-based environmental engineering firm.
When the Dallas Stars moved to Texas in 1993, Trey became a Dallas Stars season ticket holder and an avid hockey fan. He loved all aspects of the game and taught Brianna the names and numbers of all the players when she was 3 years old. The father-daughter pair made countless memories watching Stars games, attending games and playoff matches, and were so excited to be able to attend the NHL Winter Classic together in Dallas in 2020. The two also shared countless Disney adventures together driving many times to Florida and back listening to the classic rock music that they both loved.
The scouting experiences of his youth sparked a life-long love the outdoors and Trey never grew tired of teaching outdoor skills to his students at Westwood. He was a staff volunteer on many of the school Adventure Leadership Program trips teaching camping, hiking, and canoeing skills and traveling with classes to many destinations in Texas and surrounding states.
Trey was preceded in death by his younger brother Jeff and their father. He is survived by his mother Jane Adair of Ada, Oklahoma, his daughter Brianna Lynne Adair of Frisco, and several young adults to whom he was a much-loved second dad.
Visitation will be Wednesday, Sep. 15 from 10 a.m. until noon in the chapel at the Metrocrest Funeral Home and Hilltop Memorial Park 1810 N Perry Rd, Carrollton, TX 75006. A private celebration of life and interment will be held at a later time. In lieu of flowers, honorary donations may be made in Trey's name to the Dallas Stars Foundation at www.nhl.com/stars/community/donations.

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