Hello

This is probably them in 1881:
THOMAS family
Morgan Head age 33 born Margam, Glamorgan Coal Miner
Mary Wife age 30 born Margam, Glamorgan
Morgan Son age 7 born Margam, Glamorgan Scholar
John Son age 5 born Margam, Glamorgan Scholar
David Son age 3 born Margam, Glamorgan Scholar
Sarah Daur age 4 months born Glyncorrwg, Glamorgan
Glyncorrwg, Glamorgan, Wales
RG11 Piece 5343 Folio 104 Page 26
Kind Regards
Morgan