Andrea you are wonderful!!
I'll try that one, have just sent for a load of certificates from the GRO so will go back onto the site. I've got Robert Wardropper's birth certificate for Nov 1842 in Tonbridge, it lists his parents as Joseph Wardropper, engine driver, and Jane Wardropper formerly Collis (could be Collins), they don't appear to have an address though as there isn't one on the certificate!
Kind regards
Carol