He spotted the talent of Ranjitsinhji when the latter, owing to his unorthodox batting and his race, was struggling to find a place for himself in the university side, and as captain was responsible for Ranji's inclusion in the Cambridge First XI and the awarding of his Blue.

[5] Captaining England for the first time, he won all five tosses and topped the batting and bowling averages for both sides, with 492 runs at 70.28 and 13 wickets at 15.46.

[6][7] An orthodox batsman with a penchant for forcing strokes in front of square on both sides of the wicket he was regarded as a very sound player of fast bowling.

[12] As a former lieutenant in the Harrow School Volunteers, on 16 January 1900 Jackson was gazetted to a captaincy direct rather than being promoted in the normal way.

On 6 February 1932, Jackson sidestepped and ducked five pistol shots fired at close range by a girl student named Bina Das in the Convocation Hall of the University of Calcutta.

"[18] The attacker was tackled and disarmed by Lieutenant-Colonel Hassan Suhrawardy (the first Muslim vice chancellor of the University of Calcutta), who was knighted by the King for his heroism.

[20] They had one son, Major Henry Jackson (1903-1962), who married Grace Beddard, his cousin (a granddaughter of Lord Allerton).

[21] Recalling his funeral, the Bishop of Knaresborough remarked "As I gazed down on the rapt faces of that vast congregation, I could see how they revered him as though he were the Almighty, though, of course, infinitely stronger on the leg side."