This may be Sarah widowed (Edward died 1875) in the 1881 census at Llangynwyd Lower, Glamorgan, Wales. Sarah and her children David and Margaret would be living with her mother and her brothers. In this case, Sarah's maiden name would be Thomas. This agrees with the FreeBMD marriage record I located. Dwelling: Cwmyrica Census Place: Llangynwyd Lower, Glamorgan, Wales Source: FHL Film 1342283 PRO Ref RG11 Piece 5327 Folio 113 Page 3 Marr Age Sex Birthplace Caroline THOMAS W 74 F Llanguine, Glamorgan, Wales Rel: Head Occ: Farmer Of 287 Acres Evan THOMAS U 37 M Llangonoyd, Glamorgan, Wales Rel: Son Occ: Farmer Son Roinold THOMAS U 32 M Llangonoyd, Glamorgan, Wales Rel: Son Occ: Farmer Son Richard THOMAS U 32 M Llangonoyd, Glamorgan, Wales Rel: Son Occ: Farmer Son Sarah LOVELOCK W 27 F Llangonoyd, Glamorgan, Wales Rel: Daur David LOVELOCK 10 M Llangonoyd, Glamorgan, Wales Rel: G Son Occ: Scholar Margret LOVELOCK 8 F Llangonoyd, Glamorgan, Wales Rel: G Daur Occ: Scholar Martha LALIS U 20 F Millford, Pembroke, Wales Rel: Serv Occ: General Serv John LOVEREIGN U 40 M Marthoe, Devon, England Rel: Serv Occ: General Serv (Ag Lab) James LEWIS U 35 M Pethrey, Devon, England Rel: Serv Occ: General Serv