WALTER TYBBOT was a freeman at Gloucester, Massachusetts, on May 19, 1642, and died there August, 1651. His will, dated June 5, 1651, makes his wife executrix, and names his grandchildren, Richard and Elizabeth Dike; John and Joseph Clark, and Joseph and William Haskell. His daughter, Mary, the only child whose name is known, was born in England, and married, November 16, 1643, William Haskell, Sr., of Gloucester (Haskell I), and died August 16, 1693.
Source: "Bullard and Allied Families Genealogy" 2