Mary was the daughter of John Denman and Mary Gano. 
She was the second of three daughters and was probably born in Newtown, New York, from a reading of the source material referenced. They also had four sons, born in 1700, 1702, 1704 and 1706/7. Since John Denman died in 1713, and due her first marriage and child Mary was born before 1695.
She moved with her brothers to Elizabethtown, New Jersey, and married a Mr. Beris. She had a son, Denman, and a granddaughter, Mary.
Buried Presbyterian Church Cemetery - Plot K-27/Westfield, Union, New Jersey, USA. 
Note N190Name: Mary DENMAN.
Birth: 1695 in Newtown, Queens Co., NY.
Death: 8 AUG 1778.
Reference Number: 418.
Note: Mary went with her brother, William, to Elizabethtown, NJ, married a Mr. Beris, and had a son, Denman Beris. 1
Father: John 4 Christopher DENMAN b: 1643 in Salem Colony, Essex Co., Massachusetts.
Mother: Mary GANO\GERNEAUX b: ABT 1670 in Amsterdam, Holland. 1
Marriage 1 Unknown BERIS b: ABT 1694.
Children: Denman BERIS b: ABT 1715. 1
Marriage 2 Phillip BROOKS b: ABT 1675.
Married: 2 JAN 1717/18. 1
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