9 months added back again

I've been unable to find the baptism on ancestry. I know the twins' names - Hannah and Mary Williams born 2nd November 1865. Registered 29th November by the mother Hannah Williams of St Catherine's Road, Kensington Town. Father John Williams.
So I'm unable to check whether he was noted as deceased.
I did post in 2008 about John Williams. I was Jillie42 then but couldn't log in under my old name as my old email address has been hacked into.
I got lots of help but had to leave it as I couldn't' make any head way.
I've decided to retry and locate him as i can't trace that part of my family with so little information about him. There was never an age given on his marriage certificate in 1863 to Hannah Fuller. just the location - St Martins in the Fields. He was just described as a labourer, bachelor, Of full age.
So now I'm trying to narrow down the possibles on Free BMD and attempting to winnow out the unlikeliest. Hit and miss I know but it's all I've got to go on