I've just started researching my mom's line recently.
The information I have is: Sarah Rebecca Campion married Thomas Wallington also of Northampton (I haven't discovered a marriage date yet - if you have some info on that, I would appreciate it)
Their son Frank Wallington (b.1888, d.1965) was my grandfather who emigrated to Canada (I think in the 1920's)and married my grandmother Hilda Gill and had my mom in Toronto. (I didn't get to know my grandfather as he died when I was barely a year old.)
Do you have any more info on John Campion and Mary Cawley (birth, marriage dates etc.) or on their ancestry?