Jackson played at centre, and scored a try in Leeds' 14–15 defeat by St. Helens in the 1987–88 John Player Special Trophy Final during the 1987–88 season at Central Park, Wigan on 9 January 1988.
The 1988 season saw Jackson achieve international selection for the first time in Australia's successful home defence of The Ashes against the touring Great Britain team.
In the Centenary Test in 1988, the first match of the three-Test series at the Sydney Football Stadium, Jackson scored two tries, contributing to Australia's 17–6 win.
Jackson joined the North Sydney Bears in 1991 and his arrival, along with the addition of veteran forward Mario Fenech, and goal-kicking winger Daryl Halligan, saw the club's fortunes turn around as they went from being easybeats (not having won a premiership since 1922) to being title contenders.
McNamara then started working at The Southport School where he sexually abused a number of the 1980 1st XV Rugby team, including Jackson.
[8] Since 2003, the Peter Jackson Memorial Trophy has been awarded to the person, whether a player or member of the support staff, who makes the greatest contribution to the Queensland State of Origin team each year.