Under DILLAHAY;
1851 Census
Woodyatts Field,
Madley, Herefordshire
HO107/1978/401/31
James DELLAHAY, 44, Head, Mar, Agricultural Labourer, born Madley
Ann, 39, Wife, Mar, born Madley
CHRISTIANNA, 6, Daug, born Madley
Margaret, 3, Daug, born Moses
James DAVIES, 51, Brother In Law, Unm, Ag Lab, born Madley
So Ann was nee Davies/Davis but I cant find a Marriage!
Looks like Sister Margaret may have been the Witness at the Wedding.