 After playing for Liverpool until 1933, he decided to have a complete change of career, becoming a minister in the Presbyterian church; during his spell at Anfield he was nicknamed 'The Parson' because of his religious connections.Before he was ordained as a minister, Jackson found time to attend Cambridge where he read both Philosophy and Greek.His father Jimmy and his younger brother Archie were also footballers; Jimmy played for several football clubs in both England and Scotland, most notably for Newcastle United and Woolwich Arsenal, while Archie played for Sunderland and Tranmere Rovers.