Jim Petree graduated from Thomas High School in 1976. He played football and golf while at Southwestern Oklahoma State University and graduated with a Bachelor of Science in 1981. In 1991 he graduated with a Masters Degree in Education. Coach Petree was hired in 1983 at Thomas as an assistant coach under Coach Kenneth Roof in football and under Randy Nease in basketball. In 1989 the Lady Terriers won the State Title and Coach Petree was hired to be the head high school boys basketball coach. He would coach the Terriers for the next 26 years. Over the course of his career he has participated in 10 state tournaments, brought home the State Runner up Trophy in 2008, and then again in 2015. After 2015, Coach Petree decided to retire. Over the course of his career he has been honored with being selected as the 1999 All State Basketball Coach, the 2008 the Region 1 Basketball Coach of the Year, and the 2015 the Oklahoma Coaches Association Coach of the Year. After 3 years in retirement Jim decided to return to coaching at Thomas and was hired in 2018 as the Head Girls Basketball Coach. He took his girls team to the State Quarterfinals in 2021.
Lianna Mueller is the assistant girls basketball coach. She was hired to coach the Lady Terriers in 2015.
Elijah Zoschke graduated from TFC schools in 2007 and started on the 2006 State Semi Finals basketball team under Jim Petree. He graduated from Southwestern Oklahoma State University in 2012 with a Bachelors in English Education. He was hired in 2012 as an assistant coach in Basketball and Football. Coach Zoschke was hired to be the head basketabll coach in 2015.
Coach Roberts is the assistant boys basketball coach.