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Probably the below:

NAME:                      Allen, Sydney William
RANK:                      Sergeant
UNIT:                      Royal Marines
BATTALION ETC:             HMS Dunedin
REGIMENTAL NUMBER:         PO/X 922
HOW DIED/DATE OF DEATH:    24th November 1941
WHERE BURIED/COMMEMORATED: Portsmouth Naval Memorial, Hampshire, UK
OTHER INFORMATION:         Age 33. Son of Job and Mary Allen.
                           Husband of Kathleen Allen.