Nielsen Hayden genealogy
Family: Walter Calverley / Joan Bigod (F1499)
m. Aft Aug 1401-
Father | Male
Walter Calverley
Born Abt 1340 of Calverley, Yorkshire, England 
Died Bef 18 Dec 1404 Buried Married Aft Aug 1401 [1, 2] Father John Scot | F1602 Group Sheet Mother Agnes | F1602 Group Sheet
Mother | Female
Joan Bigod
Born Died Bef 1421 and Jun 1423 Buried Father John Bigod | F2144 Group Sheet Mother Amy | F2144 Group Sheet
Child 1 | Male
+ Walter Calverley
Born Abt 1402 of Calverley, Yorkshire, England 
Died Between 6 Apr 1466 and 5 Mar 1467 Buried Spouse Elizabeth Markenfield | F1623 Married Between 1 Mar 1415 and 16 Apr 1415
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Sources - [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., year only.
- [S1479] The Calverley Charters, Presented to the British Museum by Sir Walter Calverley Trevelyan, Baronet, transcribed by Samuel Margerison and edited by William Paley Baildon and Samuel Margerison. Leeds, 1904.
- [S142] Royal Ancestry: A Study in Colonial and Medieval Families by Douglas Richardson. Salt Lake City, 2013., year only.