Oct., 1668 Norwich New London County Connecticut, USA
Dec., 1746 Old Saybrook Middlesex County Connecticut, USA
Numerous sources give birth date for Margaret as 1675 (Geni.com and wikitree.com among others) but this would have her being born after her mother's death date of 1671. Most sources give her mother Mary's death date as 1708 in Norwich, though some sources do say she died in 1671. Since the majority of good sources indicate Margaret born in 1675, I am going with a death date of 1708 for her mother Mary Tracy Griswold. Certainly open to research on this.