Found William shepherd buried Charleton born 1771 died 1837, so looks as if he and Mary both buried there.
Also there are Philip Camp and his wife, buried in churchyard Philip buried 9.3.1800, Hannad born 1761 died 14.12.1820
also a Mary anna Maria camp died 1781, could be the mother of Philip?
There is a Mary Ann Mariah Camp Shepherd daughter of John and Hannah Shepherd baptised 1.6.1794
so did another Shepherd marry a Camp?
Found a baptism for Maria Camp, baptised 6.2.1791
but parents listed as John and Mary, so did the vicar get the names muddled?
Hope this helps and has clarified William Shepherd.