Mary Barrett Thayer was born circa 1632 in Norwich, Norfolk, England to Thomas Barrett (1593-1668) and Margaret Huntington (1608-1681) and died 2 April 1657 Braintree, Norfolk County, Massachusetts of unspecified causes. She married Shadrach Thayer (1629-1678) 1 March 1654 in Braintree, Norfolk County, Massachusetts.
|Offspring of Shadrach Thayer and Mary Barrett (1633-1657)|
|Rachel Thayer (1655-1656)|
|Thyall Thayer (1657-1736)|