Tracey
If you get the marriage certificate, it should say where they were born, and who their parents were, and maybe their age. sometimes it just says they were of age (older enough to be married) This information isn't always on the certificates, depending on what the couple were prepared to put down. Take note of the witnesses on the certificate, as they might be sisters or brothers. This will help to recognize the family. I did give you a couple of children born in Bury St. Edmunds. There was a Jane Armstrong b:10.03.1818 ch:17.03.1819 F/Thomas Armstrong M/Jane NOBLE in St. Matthew, Ipswich, Suffolk. (LDS). Ipswich is a fair way from Bury St. Edmunds. I wonder when she went to Northumberland. My family moved around Suffolk, Cambridge, Norfolk and Northumberland. If you find her parents names, they might be in Northumberland in the 1841 census.
sabrina