Could they have possibly married after the children were born, does any of the details below fit with what you have?
County Norfolk
Place Norwich
Church St. Etheldreda
RegisterNumber 14
MarriageDate 25 Sep 1842
GroomForename Samuel
GroomSurname AGGAS
GroomAge
GroomParish St. Etheldred
GroomCondition Bachelor
GroomOccupation Labourer
GroomAbode King Street
BrideForename Elizabeth
BrideSurname WARD
BrideAge
BrideParish St. Etheldred
BrideCondition Spinster
BrideOccupation Servant
BrideAbode King Street
GroomFatherForename Samuel
GroomFatherSurname AGGAS
GroomFatherOccupation Dead
BrideFatherForename Robert
BrideFatherSurname TIBBENHAM
BrideFatherOccupation Farmer
WitnessOneForename John
WitnessOneSurname COOK
WitnessTwoForename Emma
WitnessTwoSurname WARD?
Notes Groom signed X
same marriage but surname spelt differently
County Norfolk
Place Norwich
Church St, Etheldreda
RegisterNumber 14
MarriageDate 25 Sep 1842
GroomForename Samuel
GroomSurname AGGERS
GroomAge
GroomParish
GroomCondition Bachelor
GroomOccupation Labourer
GroomAbode King Street St, Etheldred.
BrideForename Elizabeth
BrideSurname WARD
BrideAge
BrideParish
BrideCondition Spinster
BrideOccupation Servant
BrideAbode King Street St, Etheldred.
GroomFatherForename Sammuel
GroomFatherSurname AGGERS
GroomFatherOccupation Brickmaker
BrideFatherForename Robert
BrideFatherSurname TIBBENHAM
BrideFatherOccupation Farmer
WitnessOneForename John
WitnessOneSurname COOK
WitnessTwoForename Emma
WitnessTwoSurname ALLURED
Notes Married by Banns. Groom, signed X. Groom's father indicated as dead.
FileNumber 25639
link to the original cert:
https://familysearch.org/pal:/MM9.3.1/TH-267-11577-85174-45?cc=1416598&wc=MMVP-W9W:1149539474