And here are the burials i have found
29 July 1780 William Preston
7 Feb 1790 Rachel Preston, inf, dau John and Mary
4 May 1793 David Prestone, inf, son of John and Mary
? Dec 1800 Charles Preston son of John and Mary
18 May 1824 Mary Preston age 76 ( Idstone )
20 May 1831 John Preston age 75 (Ashbury )
Hope this helps

Sue