Brother of Horatio Nelson Prentice; their father John Prentice, mother Dorothy Sexton. Father John died 1810, Champion, Jefferson co., NY. Various sources cite this line as descending from Rev. Nathaniel Prentice/wife Mary TYNG of Dunstable>John Prentice/wife Olive Kibbe>John Prentice wife Dorothy Sexton. Does anyone have proof, besides the book by Binney, that this is correct? Please get in touch.