| Sources |
- [S43870] Genealogy.com, LLC, World Family Tree Vol. 49, Ed. 1, (Release date: December 1999), Tree #0918 (Reliability: 0).
Date of Import: Aug 23, 2000
- [S53191] Ancestor chart of Margaret Crossman Pingree, (compiled by Margaret Crossman Pingree for the Haskell Family Association).
- [S27363] Genealogy of the descendants of William Haskell and Mary Tybott, (compiled by Marion S. Anderson for the Haskell Family Association).
- [S27381] Handwritten notes by Ruth Crossman Skillings, (before 1968).
- [S11173] Cemetery index, Wenham Cemetery, Wenham, Essex, Massachusetts, (Find-a-Grave).
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