Nielsen Hayden genealogy
Family: John Marmion / Margery de Nottingham (F20751)
m. Abt 1273-
Father | Male
John Marmion
Born Abt 1260 Checkingden, Oxfordshire, England 
Died Between 22 May 1330 and 2 Oct 1331 Buried Married Abt 1273 [1, 2] Father William Marmion | F20753 Group Sheet Mother Matilda | F20753 Group Sheet
Mother | Female
Margery de Nottingham
Born Between 1260 and 1265 Died Abt 1300 Buried Father Henry de Nottingham | F20752 Group Sheet Mother
Child 1 | Male
+ Thomas Marmion
Born Between 1285 and 1290 Checkingden, Oxfordshire, England 
Died Buried Spouse Agnes | F8023 Married
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Sources - [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.
- [S5861] The Ancestry of Thomas Bradbury (1611-1695) and His Wife Mary (Perkins) Bradbury (1615-1700) of Salisbury, Massachusetts by John Brooks Threlfall. 2nd edition. Madison, Wisconsin, 1995.
- [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.