Hi Barbara
Since there are no credible death or other records after 1920, I have been looking at possibilities of where he may have gone.
You may have this already, but if not it may be another lead, EJ's son, possibly...
Sept. 1940 Edward Paul Raymond & Winifred Wilkins, mar. Northampton. BMD, V. 3b, P. 75
Bit of a long shot, but are there any links that you are aware of with Lambeth, Eastbourne or Ipswich? On the family search and IGI I have put 2 and 2 together and may have arrived at 5!
Ipswich in particular fits in well with birth date and a possible birth place Eastbourne, I know it's quite a way from Northampthon... Though I'll PM you if the 1901 Ipswich census record is correct and you are not aware.
Regards
Geoff