[2] He was born Arnold Nugent Strode Jackson at Addlestone, Surrey, changing his surname to Strode-Jackson on 31 March 1919 (as noted in The London Gazette of 1 April 1919).
In 1912, while still an undergraduate, Jackson cut short his fishing holiday in Norway and travelled by train to compete in that year's Olympic Games in Sweden.
Even when compared to the amateurish race preparation of the era, Jackson's training regime of massage, golf and walking seemed very relaxed.
On the final turn, Mel Sheppard and Jackson also joined the crowd on his heels, with Sweden's Ernst Wide closing fast.
At the outbreak of the First World War in August 1914, Jackson was commissioned in the Loyal North Lancashire Regiment and, in September 1914, was attached to the 13th (Service) Battalion, Rifle Brigade as a Second lieutenant.
On 30 August 1917 he was transferred as acting Lieutenant-Colonel to take command of 13th (Service) Battalion, King's Royal Rifle Corps, whose CO had just been killed.
[6] He commanded the battalion during the latter stages of the Battle of Passchendaele and the German spring offensive and was made a full lieutenant colonel in May 1918.
During the Second World War, he was a colonel on the staff of the Governor of Kentucky and Administration Officer of the Inspection Board of U.K. and Canada in New York and Ottawa, in charge of Inspectors and anti-sabotage precautions.
Mike Hodd and Jack Thorington wrote a play about his life, "Strode-Jackson," which premiered at the King's Head Theatre in London in 1979.
A full-length oil painting of Jackson is prominently displayed at Vincent's Club in Oxford, having been rescued and repaired after lying neglected for many years in a Brasenose College cellar.