Nielsen Hayden genealogy
Descendants of Robert Gray
Robert Gray
   └─ Thomas I Gray (Abt 1277 of Heaton, Wark-on-Tweed, Northumberland, England - Bef 12 Mar 1344)
    Agnes ( - Aft 13 Sep 1322)
       ├─ Isabel Gray (of Heaton, Wark-on-Tweed, Northumberland, England - Aft 1362)
       │ William Heron (of Ford, Glendale, Northumberland, England - 21 Dec 1379)
       │    ├─ Roger Heron (of Croydon, Cambridgeshire, England - Bef 1400) =>
       │    │ + Margaret Hastings ( - 7 Apr 1406 Noseley, Leicestershire, England)
       │     + Elizabeth ( - Aft 1385)(m. Abt 1352)
       ├─ [Unknown] Gray (Bef 13 Mar 1309 - Bef 1362)
       │ Gerard Salvain (Bef 5 Oct 1307 of North Duffield, Yorkshire, England - 1 Aug 1369)(m. 1325)
       │     +
       └─ Thomas II Gray (Abt 1315 Heaton Castle, Wark-on-Tweed, Northumberland, England -
        Bef 22 Oct 1369 Chillingham, Glendale, Northumberland, England)
        Bef 22 Oct 1369 Chillingham, Glendale, Northumberland, England)
        Margaret de Presfen (of Middleton, Northumberland, England - Bef 15 Aug 1403)(m. Abt 1352)
           │ + Philip Darcy (21 May 1352 House of the Friars Preachers, York, Yorkshire, England -
           │ 24 Apr 1399 bur.Henes Priory, Lincolnshire, England)
           │ 24 Apr 1399 bur.Henes Priory, Lincolnshire, England)
           └─ Thomas III Gray (Abt 1359 of Heaton, Wark-on-Tweed, Northumberland, England - 26 Nov 1400) =>
            + Joan Mowbray ( - Aft 1407)(m. Bef 1384)