[1] Jack Walkington was born in Kirkstall, Leeds, West Riding of Yorkshire, England, he worked as a cabinet maker, he owned a furniture shop adjacent to the Barley Mow, Bramley, the home ground of rugby league club; Bramley, and he died aged 88 in Leeds, West Yorkshire, England.

[5] Jack Walkington played fullback in Hunslet FC's 7–13 defeat by Hull Kingston Rovers in the 1929–30 Yorkshire Cup Final during the 1929–30 season at Headingley, Leeds on Saturday 30 November 1929, in front of a crowd of 11,000.

During Jack Walkington's time at Hunslet, they were losing finalists in three Yorkshire Cup Finals; the 7–13 defeat by Hull Kingston Rovers in the 1929 Yorkshire Cup Final during the 1929–30 season at Headingley, Leeds on Saturday 30 November 1929, the 2–4 defeat by Huddersfield in the 1931 Yorkshire Cup Final during the 1931–32 season at Headingley, Leeds on Saturday 21 November 1931, and the 3-14 (3-12 at Parkside, Hunslet on Saturday 2 December 1944, and 0–2 at Thrum Hall, Halifax on Saturday 9 December 1944) aggregate defeat by Halifax in the 1944 Yorkshire Cup Final during the 1944–45 Wartime Emergency League season.

Jack Walkington's Testimonial match at Hunslet took place against Hull Kingston Rovers on Saturday 1 January 1938.

Jack Walkington's marriage to Ada E. (née Clay) was registered during third ¼ 1931 in Leeds North district.