
Family: John Clayton / Mary Mainwaring (F521)
m. 1440
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Male
John Clayton
Birth 1419 Lancashire, England 
Death 1460 Lancashire, England 
Burial Marriage 1440 [1] England [1] 
Father Thomas Clayton | F520 Group Sheet Mother Dorothy Thelwell | F520 Group Sheet
Female
Mary Mainwaring
Birth 1419 Cheshire, England 
Death 1445 Yorkshire, England 
Burial Father William Mainwaring | F788 Group Sheet Mother Margaret de Warenne | F788 Group Sheet
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Sources - [S309] Hepburn, Henry F, The Clayton Family, (Name: Historical Society of Delaware; Location: Wilmington, Delaware, USA; Date: 1904;).
- [S309] Hepburn, Henry F, The Clayton Family, (Name: Historical Society of Delaware; Location: Wilmington, Delaware, USA; Date: 1904;).
