Other sources claim he was born in Swansea, Wales while the Manchester Evening News reported in 1900 that he was educated at Llandovery College and he may have served in the Boer War.
He was reputed to be a powerful goal-kicker and was the star of Cornwall's championship-winning side in 1908 when he led the way in the 17–3 final victory over Durham in front of 17,000 spectators at Redruth R.F.C.
[5] Jackson was suspended and recalled from the 1908 Lions tour of New Zealand, where he was considered the tourists' best forward, to be investigated by the Rugby Football Union for professionalism.
[6] Leaving his close friend and Leicester teammate John Jackett in tears on the wind-swept dockside, he sailed from Wellington to Sydney on the Maitai but, for whatever reason, decided he could not return to England and slipped back to New Zealand unannounced, and married Horowai Henderson from Te Araroa and had five children.
[9] Jackson had five children, Everard, Mary, Reginald Tutu Taonga Wi Repa, Sydney (Bully) and Irwin.