| Sources |
- [S27363] Genealogy of the descendants of William Haskell and Mary Tybott, (compiled by Marion S. Anderson for the Haskell Family Association).
- [S42440] RootsWeb.com, Burnham, Bean, Willard, and Barton (Jeremiah Burnham).
- [S27462] Haskell Journal, Issue 56, 2001, Henry Haskell of Gloucester and Harvard, Massachusetts, (Journal of the Haskell Family Association).
- [S42358] RootsWeb.com, Ancestry of Bob and Mary Beth Wheeler (Mary Beth Wheeler).
- [S43667] Vital Records of Harvard, Massachusetts, to the year 1850.
- [S43817] Joseph Willard and Charles Wilkes Walker, Willard Genealogy, sequel to Willard Memoir, (1915).
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