Thanks to a great email from Pete Bradley, I was able to confirm the two children of Wilfred George GAMMON that I had previously suspected. The main site has now been updated with this information (PETER Tree).
Even better than that was the photo that he sent me of Wilfred George as a boy outside Ferry Cottage in Rye Sussex. This photo was displayed outside the cottage when he visited it.
I am slowly working through some results received from Ann Cossar of the GoONS who has been doing a Marriage Challenge for the huge St George Hannover Square Registration District in London. I am checking the results for marriages that I did not have previously, and then I will need to cross check all of them against what is available on the Find My Past website to find any errors, and fill in any blanks.