Nielsen Hayden genealogy
Family: Dr. Thomas Gerard / Susanna Snow (F20986)
m. Aft 21 Sep 1629-
Father | Male
Dr. Thomas Gerard
Born Bef 10 Dec 1608 Died Between 28 Jan 1673 and 19 Nov 1673 Westmoreland County, Virginia 
Buried St. Clement's, St. Mary's County, Maryland 
Married Aft 21 Sep 1629 [1, 2] Father John Gerard | F21020 Group Sheet Mother Isabel | F21020 Group Sheet
Mother | Female
Susanna Snow
Born Died Bef 1673 Buried Father John Snow | F20987 Group Sheet Mother Eydreth | F20987 Group Sheet
Child 1 | Female
+ Susannah Gerard
Born Died Aft 1679 Buried Spouse Robert Slye | F7972 Married Spouse John Coode | F20988 Married Spouse John Washington | F20989 Married
Child 2 | Female
Frances Gerard
Born Died Buried Spouse Col. John Washington | F20990 Married Aft 10 May 1676
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.
- [S145] Ancestral Roots of Certain American Colonists Who Came to America Before 1700 by Frederick Lewis Weis and Walter Lee Sheppard, Jr. 8th edition, William R. Beall & Kaleen E. Beall, eds. Baltimore: Genealogical Publishing Company, 2004, 2006, 2008.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013.