To follow William A Lloyd's line back you really need the marriage cert for he and Winnie.
When ordering use the spelling given on FreeBMD for Winifred or just use William's name

Winnifred Edmonds, William A Lloyd June 1/4 1915 Cricklade vol 5a page 131 (check details on FreeBMD)
You can order online here
http://www.gro.gov.uk/gro/content/certificates/default.aspThere is a family in the 1901 census living in Swindon Wiltshire
RG13/1907/28/6
19 Cheltenham Street Swindon
Albert E Lloyd 54 Railway engineer {fitter(?)} born Birmingham Warwickshire
Susannah wife 53 born Wales NK (doesn't know which town or county)
Susie dau 29
Albert E 24 engine fitter
Florence M 19
Ethel J 17
William A 9
All children born Swindon. So Susannah the mother may be the Welsh link. But to be sure you don't chase the wrong family you need that marriage cert for William A and Winifred
