No I didn't know that

sounds very helpful indeed! I shall be looking into that thank you.
The possible deaths are registered under Clews in Stockport (workhouse) so that might be the problem. I have the one for Charlotte but not for John William.
I can't find Emma anywhere in 1891

My theory for Thomas is that after he is discharged from the army 1888, he makes his way to Wales for the 1891,1901, 1911 and works as a farm servant/ cattleman. I've checked and double checked for any other possible Thomas Clowes this could be and am quietly confident that he is my guy.
Probable death is May 1936 Temple Buildings, Lampeter, Wales, previously the workhousebut I don't have the cert as I felt it wouldn't prove anything more to me but the ages match up exactly to his birth date.
So I'm missing Emma in 1891 and the link to the adoptive family to tie things up. Any ideas where next?