Wondering if anyone can help with this:
I'm looking for William John Thomas, son of William Frederick Thomas and Elizabeth Emily (Bessie) Minton, who were married at Eglwysilan on 14 Sep 1896.
In 1901 William and Bessie were at 51 Coedpenmaen Rd, Pontypridd with daughter Jane (registered as Elizabeth Jane, later known as Jennie), aged 1.
In 1911 they were at 6 Dewi Street, Pontypridd with Jenny (11), Lily 8 and Harry (5). They have been married for 15 years, had 4 children, all still alive.
When Jennie married William Brooks on 8 Dec 1919, one of the witnesses was a William John Thomas.
Bessie's death (21 Sep 1949) was registered by W J Thomas, son, of 42 Thurston Rd, Pontypridd. So this would appear to be the child missing from the 1911, and the witness at Jennie's marriage.
His father's WW1 service record from 1917 includes William John as a child but this has been crossed out, presumably as the birth date appears to say 18 years 7 months / 1899 (see image attached). The address looks to be 31 Coedpenmaen Rd, Pontypridd - they were at 51 in 1901.
But even with the new GRO search facility I can't find a birth record for him, the only William John Thomas birth in Pontypridd in 1899 had a mmn of Jenkins.
Nor can I find him on either the 1901 or the 1911. Any suggestions gratefully received. Thanks in advance.