Source 1. New England Historical & Genealogical Register vol. 126. .
Source 2. Genealogical Dictionary of First Settlers of New England vol. 3. pg:29.
Source 3. (Marriage & death) New England marriages Prior to 1700 pg:653.
Source 4. New England Historical & Genealogical Register-vol. 126; states that this date conflicts with birth of sister Hannah & suggests that the Watertown Vital Records are in error and the birth date of Zachariah was 1644-45;
Zachariah grew up in Watertown but in his adolescence went with his parents to Groton;