Is this them in 1891?
John Powell 37
Martha Powell 36
Hannah Powell 15
David Powell 13
Elizabeth Powell 11
Charlotte Powell 8
Thomas Powell 6
Blodwen Powell 10/12
John is born c 1854 Blaenavon, Monmouthshire
Do you have a Childs Birth Cert to establish Marthas maiden name?
David 1878 is born in Beaufort, Breconshire
This is them in 1881;
John Powell 27
Martha Powell 26
Hannah Powell 6
David J. Powell 3
Elizebeth E. Powell 1
Marriage therefore should be between 1883-1885
Unfortunately there are several possibilities so you need a Childs Birth Cert
