Nielsen Hayden genealogy
Family: John Day / Mary Gaylord (F4134)
m. Bef 1670-
Male
John Day
Birth Abt 1643 Hartford, Hartford, Connecticut 
Death Bef 29 Apr 1730 Hartford, Hartford, Connecticut Burial Marriage Bef 1670 [1, 2] Father Robert Day | F1540 Group Sheet Mother Editha Stebbing | F1540 Group Sheet
Female
Mary Gaylord
Birth 19 Mar 1651 Windsor, Hartford, Connecticut Death Bef 1690 Burial Father Walter Gaylord | F18475 Group Sheet Mother Mary Stebbing | F18475 Group Sheet
Male
+ John Day
Birth Abt 1676 Death 4 Nov 1752 Colchester, New London, Connecticut Burial Spouse Grace Spencer | F186 Marriage 21 Jan 1696 Hartford, Hartford, Connecticut
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Sources - [S387] Hale, House and Related Families, Mainly of the Connecticut River Valley by Donald Lines Jacobus and Edgar Francis Waterman. Hartford, Connecticut: Connecticut Historical Society, 1952.
- [S101] The Great Migration Begins: Immigrants to New England, 1620-1633, Volumes 1-3 and The Great Migration: Immigrants to New England, 1634-1635, Volumes 1-7, by Robert Charles Anderson. Boston: New England Historic Genealogical Society, 1996-2011.
- [S387] Hale, House and Related Families, Mainly of the Connecticut River Valley by Donald Lines Jacobus and Edgar Francis Waterman. Hartford, Connecticut: Connecticut Historical Society, 1952.