Hi,
Do you think Fred could have started using the full version of that name Frederick?
I can't find a birth of a Frederick GURMAN of about the same age but I have found this death,
Frederick GURMAN
DOB: 07 Nov 1887
Mar 1970 Northampton 3b 1901
Oh, looking at a different post of yours, you do know that he married Mabel GIBBONS in the 1920s,
http://www.rootschat.com/forum/index.php?topic=728180.msg5727378#msg5727378this looks like the marriage, so if that's the right Fred he is using Frederick,
Frederick GURMAN
Mabel GIBBINS
DecQ 1924 Northampton 3b 99
This would fit with the Northamptonshire death place.
Regards,
Daisy