In 1952 Walker moved to the Canadian Football League (CFL) to become the head coach of the Montreal Alouettes.
In the off-season he taught and coached at high schools in West Point, Ga. and in Roanoke, Ala, from 1922-25.
They had two children, D.C. Jr., and Walter Hill Walker, both born during his high school coaching days.
He coached at Elon for ten seasons, earning a 44–41–4 record and winning four North State Conference championships.
Walker left Wake in the spring of 1951 over a salary dispute with the college's new president, Harold Tribble.
Following Wake Forest's superb 1950 football season, in which the Deacons went 6–1–2 and narrowly missed winning the Southern Conference championship, the athletic committee of the Wake Forest College Board of Trustees approved a contract extension, and a raise in Walker's annual salary from $7,500 per year to $9,000.
Believing Tribble had gone back on a handshake deal, and miffed at the low-ball offer, Walker accepted the Yale position, ending the tenure of Wake Forest's most successful football coach.
[8] After one year at Yale, he replaced the retiring Lew Hayman as the second head coach of the Canadian Football League's Montreal Alouettes.