Walker attended South Oak Cliff High School, where he practiced football and basketball, receiving All-City honors in both sports.
He accepted a football scholarship from Rice University in 1966, where he was a two-way player and a three-year starter, playing center on offense and linebacker on defense.
[1] In 1966, he was moved to tackle because of the depth at the center position and was later placed on the taxi squad, because he wasn't fully recovered from his previous injury.
After playing with multiple injuries the previous year, he was traded along with Clarence Williams to the Green Bay Packers in exchange for Herb Adderley on September 1, 1970.
After retiring from the Packers, he joined a large accounting firm and served as a special assistant to the football team at St. Mark's School of Texas.