Mary Waters, was born 27 January 1637/38 in Watertown, Middlesex County Massachusett She was the daughter of Lawrence Waters and Anna Linton. She married Samuel Davis 20 March 1655/56 in Charlestown, Suffolk County, Massachusetts.

The family had nine children. Of those a child named for Mary died young and another baby girl was named Mary in 1662. The first three children were born in Charlestown.

In 1660 her husband had purchased property in Groton. Four more children were born at Groton. With the fear of Indian uprisings the family returned to Charlestown a year before King Phillip’s War for the birth of Patience in April 1664. The family eventually returned to Groton but were always plagued with fear of attacks. In 1691 the family was again garrisoned for protection.

Mary’s husband died 28 December 1699 in Groton, Middlesex County Massachusetts. In 1704, the village was attacked and Mary’s son, John was killed in front of his own home. Mary lived until 29 March 1713 and was buried at Charlestown.