Alan McGowan: May I suggest he be referred to as Joseph.
His name was recorded as Stracstein at the time of his birth. The same spelling was used when his intention to assume the name Joseph Stone was published in The London Gazette of 21 July 1944. Chess references all seem to show Strachstein.
1933: in the Major section of the London Congress, Strachstein was 1st with 9/11, ahead of H. Brown and W.H. Watts etc
1937: accepted as a member of the Bohemian CC, Glasgow, at a club meeting on 26 May (Minute Book).
1939: played first board for Bohemian in Scotland's premier team competition, the Richardson Cup, defeating Dr J.M. Aitken.
1939: drew his game against Flohr in a simul at National Chess Centre, London. (Falkirk Herald chess column 4 Oct 1939, p.6)
1947: played top board for Middlesex in a friendly four-board match against Slovakia & Moravia (members of the Czech team visiting Britain at the time). He lost to Dr Florian.
1949: represented London League v Sydney, Australia in Radio Match. Won v S. Kruger on Bd. 9.