Mr. Threlkeld graduated from East Texas State University with a BBA in 1960. He began his career in the insurance field in 1960. He established TCI in 1982 and the agency has grown to become one of the premier insurance agencies in East Texas. TCI currently has 44 employees and is a direct descendent of Clyde & Prestridge Insurance Agency, which was established in 1929. His wife, Cheryl, also graduated from the University with a BS degree in 1960.