Hello
I can see your problem but perhaps a look at their burials at Crediton will reassure you.
John Setter buried 25.3.1863 age 67 therefore born 1795 to March 1796
Ann 2.3.1865 age 68 years therefore should be 1796 to Mar 1797.
The most likely baptism for John is the one you have and July 1795 would be an exact fit.
Ann's is a year out.
Ann twin daughter of John and Ann Coles 11.3.1798 with her twin sister Sarah at Crediton.
John and Ann's children are mostly named after her family.
Siblings,Mary 12.3.1793,James 7.6.1795,Sarah,William 14.9.2800,John 31.7.1803,Elizabeth 22.9.1805 and Maria 29.8.1813.
John Coles and Ann Lendon married 28.5.1792 at Crediton.
Perhaps they just got on better with her family?
On the Setter side we have George and Sussanna Hammet married 1.4.1792 at CB
Son John ,then George 10.6.1798 now no mention of CB.
Witness to the marriage is Samuel Friggs and Bent? Brown perhaps a hint where the Samuel came from.
Susan buried CB 15.8.1834 age 69 from the poor house.
Baptism CB 25.11.1764 to Grace Hamnett again fits nicely.
It looks as though George was born 2.2.1748 CB to Richard and Susan and was buried 16.1.1822 age 73 Crediton.
A possible first marriage to Joanna Drew 15.12.1773 who died 25.9.1784. witnesses Richard Setter and John Ascott.
Children Ann 26.7.1774,Sussana 10.12.1776,George 22.6.1779,Ann 30.1.1782 and Mary 27.7.1784
Does that help?I really think you have the right family.
Ciderdrinker