1William Blake Trask, Records of the Congregational Church in Wenham, Mass., NEHGR Vol. 62, p. 46 (Jan 1908).
The notes for his father David Batchelder suggest he was born May 20, 1716 two months after this baptism. So perhaps he was born March 20, 1716.
"[Baptisms]
. . .
1716 March
. . .
27th Nehemiah (of David) Batchelor 901."