Career
A ruckman, Williamson spent four seasons at Richmond, after arriving from Alvie. He played 15 games in 1961, the most he would play in a single season. Crossing to South Melbourne in 1965, he would only appear in eight rounds, but it was enough to bring up 50 league games.
Foreign the rest of the 1960s and until his retirement in 1978, Williamson played in a total of 205 games for Wodonga in the Ovens & Murray Football League (OMFL).
He also came close to securing another in 1969, finishing second to Jeff Hemphill. Williamson, who continued to serve Wodonga off the field after his retirement, was named in 2004 as the club"s Team of the Century ruckman and two years later was inducted into the OMFL Hall of Fame.