Places marriage aft. 1770 because first wife of Gershom d. 1770, but source cited does not contain death record of first wife. However, Bethiah's first husband d. 12 Aug 1769 (see Source:Morris, Tyler Seymour. Ephraim and Pamela (Converse) Morris, Their Ancestors and Descendants, p. 18-9), so this could not be too far off.