Noting a source. It seems "Hannah" and Gerard had removed to Hartford before the birth of Nathaniel on 21 Dec 1658.
– Connecticut, U.S., Town Birth Records, pre-1870 (Barbour Collection)
– https://www.ancestry.com/discoveryui-content/view/318234:1034?tid=1...
Gerard's timeline as generalized by Wikitree – https://www.wikitree.com/wiki/Spencer-165#Timeline – doesn't yet account for this birth record,. It does, as Anderson does, provide the first year known for Gerard being in Haddam. Rebecca, according to Anderson, was born "say 1660".. A prime birth record for Rebecca either does not exist Lynn or Hartford records, or it hasn't been deciphered, indexed, or published yet.
