Jack Wilkinson won caps for Great Britain while at Halifax between 1952 and 1956 against France. Wilkinson also represented England while at Halifax in 1953 against Other Nationalities. Wilkinson played at in Halifax's 4–4 draw with Warrington in the 1953–54Challenge Cup Final during the 1953–54 season at Wembley Stadium, London on Saturday 24 April 1954, in front of a crowd of 81,841. In the subsequent replay he played right-, i.e. number 10, in the 4–8 loss to Warrington which attracted a record crowd of 102,575, or more, to Odsal Stadium, Bradford on Wednesday 5 May 1954. Wilkinson won caps for Great Britain while at Halifax in 1954 against Australia and New Zealand. He also played for English League XIII while at Halifax against France. Wilkinson played for England in 1955 against Other Nationalities. He won caps for Great Britain in 1955 against New Zealand. Auckland defeated Great Britain 5-4 at Carlaw Park in a rough match which resulted in Wilkinson and Nat Silcock being sent off. Wilkinson played in the 2–13 defeat by St. Helens in the 1955–56 Challenge Cup Final during the 1955–56 season at Wembley Stadium, London on Saturday 28 April 1956. Wilkinson was selected for Yorkshire County XIII while at Halifax in 1959. Wilkinson's Testimonial match at Halifax took place in 1958.
Wakefield Trinity
Jack Wilkinson joined Wakefield Trinity from Halifax in 1959 for £4,500. During the 1959–60 Kangaroo tour Wilkinson was selected to play for Great Britain at in their victory in the third and deciding Ashestest. During the 1959–60 season Wilkinson played left-, i.e. number 8, in Wakefield Trinity's 38–5 victory over Hull F.C. in the 1959–60 Challenge Cup Final during the 1959–60 season at Wembley Stadium, London on Saturday 14 May 1960, in front of a crowd of 79,773. He then played in the 3–27 loss against Wigan in the Rugby Football League Championship Final at Odsal Stadium, Bradford on Saturday, 21 May 1960. Wilkinson was selected for Yorkshire County XIII while at Wakefield Trinity. Wilkinson helped Great Britain to victory in the 1960 World Cup, playing in all three games, and scoring a try in the 33–7 victory over France on Saturday 1 October 1960 at Station Road, Swinton. During the 1960–61 season Wilkinson played for Wakefield Trinity at in their victory over Huddersfield in the 1960–61 Yorkshire Cup Final at Headingley Rugby Stadium, Leeds on Saturday 29 October 1960, The following year he again played at in Wakefield's victory in the 1961 Yorkshire Cup Final, this time over Leeds. Wilkinson played left- in the 12–6 victory over Huddersfield in the 1961–62 Challenge Cup Final during the 1961–62 season at Wembley Stadium, London on Saturday 12 May 1962, in front of a crowd of 81,263, and played left- in the 25–10 victory over Wigan in the 1962–63 Challenge Cup Final during the 1962–63 season at Wembley Stadium, London on Saturday 11 May 1963, in front of a crowd of 84,492.
Bradford Northern
Jack Wilkinson moved to Bradford Northern, as captain-coach in 1963. That year the film This Sporting Life which starred Richard Harris was released and in it Wilkinson is clearly visible as a rugby player in several scenes.
