| Sources |
- [S27363] Genealogy of the descendants of William Haskell and Mary Tybott, (compiled by Marion S. Anderson for the Haskell Family Association).
- [S75252] Ancestry.com, Witt Family Tree.
- [S3770] 1880 census, Massachusetts, Hampden county, Year: 1880; Census Place: Springfield, Hampden, Massachusetts; Roll: 536; Page: 274A; Enumeration District: 318 (Reliability: 3).
- [S27149] Family records and notes courtesy of Carroll Madison Haskell 2006, (provided to the Haskell Family Association via correspondence 2006-).
- [S35176] Marriage Records of Hancock county, Maine, Prior to 1892. Maine Genealogical Soc. Special Publication #9. Edited by Alic.
- [S20167] 1910 census, Massachusetts, Hampden county, Year: 1910; Census Place: Springfield Ward 5, Hampden, Massachusetts; Roll: T624_592; Page: 16A; Enumeration District: 0627 (Reliability: 3).
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