Neither the 'Index of Records of Old Rappahannock 1654-1692' (FamilySearch: https://www.familysearch.org/ark:/61903/3:1:3QS7-89PC-975Z?cat=413447) or the Essex Co., VA General Index to Wills and Deeds 1656-1692 (FamilySearch: https://www.familysearch.org/ark:/61903/3:1:3QS7-99P6-KSLN?cat=413447 ) show a listing for a John Ellis 1786/6 will. The first John Elles does not appear in Essex Co. VA indices until Oct 1697 (FamilySearch: https://www.familysearch.org/ark:/61903/3:1:3QS7-99P6-KSN4?cat=413447 ) where he is named to appraise the estate of William Creamer Junr. deceased. There's no 1785/86 will for John Ellis of Old Rappahannoch / Essex Co. VA.