If you are planning on visiting Chesterton whilst researching your family history then it is worth repeating what is mentioned on the front page of this site.
There are two Chesterton's in Cambridgeshire. Please double check that you have the correct Chesterton.
We are near to Peterborough and the postcode is PE7. Our parish church is dedicated to St Michael.
The other Chesterton is part of Cambridhe itself. The postcode for that one will start CB. The parish church there is dedicated to St Andrew.
If you are unsure which Chesterton you need, please let me know and I will be pleased to help if I can