Is he a son of Richard Bassett born ca 1773 Somerset?? Probable based upon 1841 census entry for Richard Bassett showing 45 yr old Thomas Bassett living with him in St Mary Hill area. (PM-247.26)
No Baptism for him in St Mary Hill or Llanilid parishes.
CD Glamorgan Baptism Index (1569-1837) does not list any Richard Bassett from St Mary Hill bapt. ca 1800.
20 Sep 1830 Colwinston Parish Marriage record: Richard Bassett of St Mary Hill married Elizabeth Jones of Colwinston parish. (PM-333.21 & PM-391.3)
1841 Glamorgan Census: Richard Bassett (40), Farmer in Ty Mynedd, St Mary Hill with wife, Elizabeth (30) and 2 kids: Elizabeth (10) and Mary (2) and Thomas Bassett (45). (PM-247.26)
1851 Glamorgan Co., Wales Census (Ancestry.com): Richard Bassett (51 St Mary Hill) Farmer of 33 acres, living in Ty Mynydd, Llangan & St Mary Hill with Eliza Bassett (44 Neath) and 2 kids: Mary (14 Colwinstone) and Charles (9 St Mary Hill). (PM-174)
1861 Wales Census (Ancestry.com): Richard Bassett (60 St Mary Hill) Innkeeper in St Bride Major with wife, Eliza (54 Neath) and son, Charles (18 St Mary Hill) and grandchild, Catherine Thomas (10 Lysworney). (PM-216)
1871 Ancestry.com Glamorgan Census: Richard Bassett, aged 70, married, lodger living with Eliza Bassett (64) in Swansea with David & Ann Thomas. (PM-200.38)