- 1885: Born February 28 in Rickmansworth, Herts, England [1]
- ---: Joined British Royal Marines, worked as bayonet instructor
- 1904: British Legation guard in Seoul, Korea [[2]
- ---: After discharge from Royal Marines, joined Shanghai Municipal Police (SMP) for International Settlement
- 1918: Badly beaten after being overpowered on foot patrol in "red light district"
- 1918: Accepted by the Kodokan Judo University [3]
- 1919: 3rd degree brown belt in January 1919 [4]
- 1920: Ten-week observation tour with New York City police department
- 1925-1935: Commander of Reserve Unit (Shanghai Riot Squad) with SMP
- 1926: 1st degree black belt in February 1926 [5]
- 1926: Defendu published [6]
- 1931: 2nd degree black belt in February 1931 [7]
- 1931: Defendu republished as Scientific Self Defense [8]
- 1940: Retired from SMP with rank of Assistant Commisioner, returned to England, commissioned into SOE
- 1940: Ordered to "Camp X" in March 1942, one of several "Commando schools", later to include "Area B" in Maryland
- 1942: Get Tough!; Hands Off; Shooting to Live published
- 1950's: Employed by Singapore police to help develop riot squad
- 1956: Employed by Cyprus Police, developed various weapons including new "COBRA" fighting knife for riot work
- 1960: Died at his home in England on June 20th, 1960.
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