Hi Victoria - although we've never met, we are second cousins !
I am the son of Patricia Edwards (your father's cousin) and the grandson of James (Jim) Padfield (Noel's brother).I have started researching the family Padfield family tree on behalf of my mother, Pat.The problem is that I end up in a different place than you describe.The Isaac Padfield I found was born in Monmouthshire and not in Somerset (although the only proof of this I have is Census returns and not a birth certificate.I am sure that Isaac's father was John Padfield and born in Leigh on Mendip in Somerset.
Are you certain that Isaac was born in Clutton? - if you have proof of this I'd love to hear from you because it means I am off track somewhere... Regards Mike