Zachariah/Zechariah was the son of James & Miriam (Wheeler) Blakeman
He married first Elizabeth Denman, daughter of Philip & Hasadiah (Slough) Denman, on 27 Dec 1704 at New Haven, New Haven, CT - their children were Mary, Elizabeth, James & Zechariah II
After the death of wife Elizabeth he married as his second wife, Dinah (Thomas) Sherman, daughter of Daniel & Rebecca (Thompson) Thomas and widow of John Sherman, on 19 Jun 1733 at New Haven, New Haven, CT
Donald Lines Jacobus, History and Genealogy of the Families of Old Fairfield, CD-Local and Family Histories: CT, 1600's - 1800's, (Produced in collaboration with the Genealogical Publishing Company, 2000), vol 1, p 153.
CT Town Birth Records, pre-1870 (Barbour Collection)
CT Town Marriage Records, pre-1870 (Barbour Collection)
References from George Abraham Hall: The Genealogical and Family History of Western New York by WSilliam Richard Cutter New England Historical and Genealogical Register>