The following data is extracted from Genealogy and Biography of Ontario County, New York.
John, son of William Mead, was born about 1634. He married Hannah Potter, of Stamford, daughter of William Potter, probably in 1657. He died February 5, 1699. He was the ancestor of the Greenwich Heads. After having lived in Stamford, and in Hempstead, Long Island, he finally located permanently at Horseneck, Connecticut. Children: John, born in Greenwich, October 7, 1658; Joseph, born May 2, 1660; Hannah, born about 1661; Ebenezer, born in 1663; Jonathan: David, mentioned elsewhere; Benjamin, born May, 1666; Nathaniel, born about 1669; Samuel, born about 1673; Abigail, born about 1675; Mary. born about 1678.
Source: Genealogy and Biography of Ontario County, New York