Carole,
Somehow I managed to miss that particular record. Thank you for providing it. So Betsey is the wife listed in all the census that followed as Elizabeth, but she went by the name Betsey probably because I can also see she had a younger sister called Eliza. I was able to take a look at Robert Taylor married to Hannah and his family (ag lab) living in Saffron Walden in the 1841 census. Betsey was born in 1832 and in the 1851 census is a servant at the Bull Inn in Saffron Walden which is maybe where she met Henry Cook.
Again, I appreciate the help.