Nothing that involves Edgar should surprise anyone!
Indeed: my narrative biography of him is now a Word document running to 9 pages with 59 footnoted references, and there are still gaps that need filling!
The Llewellyns have a Frank King, 16, "born England" boarding with them.
According to some trees, Edgar had a son called Francis born 1854. Is that right?
Is it possible that Frank was Francis Spooner/King?
Though they don't seem to have him in any census at all.
Anyway, it's a rather bizarre coincidence.
Francis Spooner, born at 23 Arlington Street, Clerkenwell on 15 October 1854 registered London, Clerkenwell 1854 Q4 volume 1B page 463. I have his birth certificate in front of me as I type. Son of Edgar Spooner, tailor of 23 Arlington Street Clerkenwell and Elizabeth Spooner formerly Escott. So no doubt that the attribution is correct.
(Is it worth noting at this point that my count of Edgar's children is up to 16 now?)
I THINK I may have found Edgar in the 1861 census (under a false name and with a very much younger lady to whom he is not married, plus 4 year old Thomas, my great great grandfather) but Francis isn't there with them. I've no idea as yet where Francis is in 1861.
I was thinking that Francis must have died and was planning on searching for a record ... but your 16 year old lodger (in the 1871 census) does look awfully like it might be him. Can you give me the census trail details for your Llewellyns as I think it bears further investigation, and is certainly worth noting as a strong possibility.
(I bet anybody else working backwards on Frank King who has got as far as your census lodger is going to be totally stumped as to further progress as it will never occur to them to look for a birth of Francis Spooner ... unless he has named Edgar as his father on his marriage certificate ... but evne then he's probably named him as Edgar King. I know that Thomas King Spooner took care to refer to his father as Edgar King until after he had died.)