birth reg of son Thomas Pugh Williams sept qtr 1868 Bedwellty vol 11a pg 86 gives mother's maiden name of Cooper. Young Thomas is with Cooper grandparents in 1871 RG10/5328 folio 6 pg 5.
Marriage after banns 24 Dec 1866 in the parish church of Bedwellty of
Thomas Williams 23 collier, Rhymney, father Thomas, collier &
Elizabeth Cooper 20, Rhymney, father Robert, stoker
both signed, witnesses John Beechey & Joan Daniel
Thomas Pugh Williams aged 57 of new Tredegar buried 24 May 1900 at Bedwellty parish church
Possible census
1851 151 Augusta St, Victoria, Bedwellty HO107/2448 folio 591 pg 14
Thomas Williams head mar 38 coal miner b. Glam, Merthyr
Margaret wife 39 b. Merioneth, Merionethshire
William son 10
Thomas son 7
Margaret dau 5
David son 1 month
children all born Rhymney
Possible birth registrations for David have mmn of Evans and Williams. Possible registration for Margaret has Evans. Haven't spotted their marriage as yet or an entry in 1841. Will carry on looking.