Hello,
Don't know if you've managed to use the link that Youngtug gave.
Found both of their baptisms in Blofield, and Caroline is listed as Simmons, parents John and Patience. So I think maybe the Caroline "Summons" on the 1841 census might be wrong. That Caroline's father is shown as Robert, whereas the marriage gives your Carolines father as John.
The IGI gives only Norwich as the marriage place - bit difficult to find, as there were goodness knows how many churches there!
Yorkslass