Wakefield Trinity

Parkin joined Wakefield Trinity as an 18-year-old in 1913. He would go on to become captain of the club. Parkin played stand-off in Wakefield Trinity's 0–6 defeat by Hull F.C. in the 1913–14 Challenge Cup Final at Thrum Hall, Halifax, in front of a crowd of 19,000,^[6] He also won caps for Yorkshire while at Wakefield Trinity.

Hull Kingston Rovers

Parkin decided he wanted to leave Wakefield Trinity in 1930, at the age of thirty-four, and he was put on the transfer list at £100 (equivalent to £6,726 in 2021).^[7] For some reason, Hull Kingston Rovers couldn't, or wouldn't, find the money. So Parkin paid the fee himself to secure his release.^[8] The game's by-laws were adjusted shortly afterwards, so that no player could ever do that again.

Jonathan Parkin: Joined Trinity as a youth in 1913 from Sharlston and played his first senior game at Bradford Northern on 19 April 1913. A most distinguished career, which covered 18 years in "Trinity's Red, White and Blue," included the following Test appearances:- 1920 (Brisbane and Sydney (1 and 2)), 1921 (Headingley Rugby Stadium, Leeds and the Boulevard, Hull), 1924 (Sydney 1 and 2 and Brisbane), 1928 (Sydney (1)), 1929 (Headingley Rugby Stadium, Leeds) and 1930 (Station Road, Swinton). It will be seen that Jonty made three tours to Australia. A footballer can have no higher testimony than to retain the confidence of all ruling officials over a period of years. For many years Jonty Parkin was chosen as captain of Wakefield Trinity, Yorkshire and Great Britain, and that is sufficient proof of his ability. So long as football is discussed in Wakefield his name will be remembered. Described by Jim Brough as the toughest scrum half he ever played with or against, Parkin's last two seasons of his career were spent with Hull Kingston Rovers His association with Wakefield Trinity continued after the Second World War when, from 1947 to 1950, he was a member of the Trinity Committee.^[9]

Parkin appears to have scored no drop-goals (or field-goals as they are currently known in Australasia), but prior to the 1974–75 season all goals, whether; conversions, penalties, or drop-goals, scored 2-points, consequently prior to this date drop-goals were often not explicitly documented, therefore '0' drop-goals may indicate drop-goals not recorded, rather than no drop-goals scored. In addition, prior to the 1949–50 season, the archaic field-goal was also still a valid means of scoring points.

International

Parkin was selected to go on the 1920 Great Britain Lions tour of Australasia. He was the Landlord of the Griffin Hotel, Bull Ring, Wakefield circa-1921.^[10] Parkin played scrum-half in Wakefield Trinity's 9–8 victory over Batley in the 1924–25 Yorkshire Cup Final at Headingley Rugby Stadium, Leeds on Saturday 22 November 1924, and played scrum-half in the 3–10 defeat by Huddersfield in the 1926–27 Yorkshire County Cup Final during the 1926–27 season at Headingley Rugby Stadium, Leeds on Wednesday 1 December 1926. Parkin played stand-off in Wakefield Trinity's 3–29 defeat by Australia in the 1921–22 Kangaroo tour of Great Britain match at Belle Vue, Wakefield on Saturday 22 October 1921.^[11]

Parkin won caps for England while at Wakefield Trinity in 1921 against Wales, Other Nationalities and Australia, in 1922 against Wales, in 1923 against Wales, in 1924 against Other Nationalities, in 1925 against Wales, in 1926 against Wales and Other Nationalities, in 1927 against Wales, in 1928 against Wales (2 matches) and won caps for Great Britain while at Wakefield Trinity in 1920 against Australia (2 matches) and New Zealand (3 matches), in 1921–22 against Australia (2 matches), in 1924 against Australia (3 matches) and New Zealand, in 1926–27 against New Zealand (2 matches), in 1928 against Australia and New Zealand and in 1929 against Australia (2 matches). Parkin was unavailable for the first Test of the 1929–30 Ashes series, and the game was lost to the touring Australians. He recovered for the second Test and Great Britain ultimately defended the Ashes.