Hopefully someone will be related and have info for you.
FreeREG has South Petherton B/M/D
Marriages for MARKS 1629/1634/1638 then a gap to 1717
Baptisms from 1605
Burials form 1637
Using soundex option there are also early entries under MARK/MARKE
Without know who you are specifically looking for I cant be much more help.
Trish
