Interesting, the 1863 marriage of Thomas Jones & Elizabeth Gower would appear to be the father of Thomas remarrying to the widowed mother of Elizabeth.
20 Feb 1863 St John's Chapel, parish of Llanelly by Licence
Thomas Jones,full age, widower, weigher, Pontyberem, father Thomas Jones, Shoemaker, to
Elizabeth Gower, full age, widow, farmer, Capel Evan, father William Williams, farmer
witnesses Henry Williams & Dinah Gower
1861 census Cappel Evan, RG9/4117/ folio 7 pg 9
Elizabeth Gower head widow 41 farmer of 140 acres employing 2 labourers
Elizabeth dau 19 dairy maid
Dinah dau 17 assisting dairy maid
David son 13 b. Llanelly
John Jones 22 general farm servant. Llanelly
all born Pembrey except last 2
From Probate index, Letters of Administration of the personal estate and effects of John Gower, late of Capel Evan, in the parish of Llanelly famer deceased who died 13 Jan 1859 at Capel Evan granted to Elizabeth Gower widow, relict of the deceased.
Notice of Dinah's marriage 20 July 1863, conducted by her brother John
http://newspapers.library.wales/view/4352207/4352212/22/1851 census Pantygwenith, Hengoed, HO107/2468 folio 390 pg 14
John Gower head mar 50 farmer of 70 acres
Elizabeth wife 41
John son 19
Ann dau 14
William son 12
Elizabeth dau 9
Dina dau 7
David son 3
Jane dau 1 b. Llanelly
all born Pembrey apart from Jane