I was just googling Cyril Godden when I came upon your request for relatives to come forward. I am not a relative but my partner James Garratt may be distantly but only through marriage. If the daughter of Cyril is by Hilda Rose Reed / Garratt / Godden, then I can tell you that James is the last of that immediate Garratt line which Hilda was briefly married into. His grandfather is James F Garratt, brother of William who Hilda was married to circa 1933-1937. James was the only surviving child when William died, and went on to have only one son, who himself had only one son (my partner).
I hope you have since met or spoken to some relatives, it is such a fascinating story!