"Jonathan (Mead) (3), b. in Greenwich abt. 1727, m. 1758, d. Feb. 10, 1804; he went with his father to Nine Partners, and from thence to Chenango County, N. Y. He married Sarah Guernsey [error for 'Thompson'; Sarah's sister had married a Garnsey/Guernsey], b. 1736, d. May 11, 1800, …"
NOTE: According to the gravestone images in their Find A Grave memorials, Mead has the dates of death of Jonathan and his wife, Sarah, reversed.