Nielsen Hayden genealogy
Descendants of Roger Gernon
- Aft 1225
Roger Gernon
( - Aft 1225)
Matilda ( - Bef 1225)
   └─ Roger Gernon ( - Bef 1279)
   
       └─ John Gernon (of East Lavington, Wiltshire, England - ??)
        Alice de Plessis ( - Aft 1301)
           │ + Geoffrey de Gresley ( - Abt 1332)(m. Abt 1318)
           ├─ John Gernon (of East Lavington, Wiltshire, England - 1339) =>
           │ +
            + Richard Dauntsey (of Wilsford Dauntsey, Wiltshire, England - ??)