Another source is entitled “Descendants of De Shelton’s”
1249  This source is somewhat different in the early generations from what is given in the present tree:
1. John de Shelton
2. Sir John Shelton (1200 - 1245), m Katherine de Elleigh 1225
3. Ralph de Shelton (1226 - 24 Feb 1271)
                 [
Note-a generation must be omitted here or else the death date for Sir John Shelton is in error]
4. Sir John de Shelton (1302 - 1333)
5. Sir Ralph de Shelton (1315 - 17 Nov 1378) m Anne Burgulion
6. Sir Ralph Shelton II   m Alice Uvalde
7. Sir Ralph Shelton III (ca 1347 - 25 Apr 1424)
8. Sir John Shelton ( ? - 1431) m Margaret Brus
9. Sir Ralph Shelton IV (1438 - 16 Jan 1499) m Margaret Clere
10. Sir John Shelton   m Margaret (unknown)
11. Sir John Shelton   m Lady Ann Boleyn
12. Sir John Shelton ( ? - 1558) m Margaret Parker
13. Sir Ralph Shelton ( ? - 3 Oct 1580) m Mary Wodehouse
14. Sir Ralph Shelton V (1 Nov 1560 - 22 Jul 1628) m Jane West
15. James Shelton I (aft 1588 - 20 May 1668) m Anne Herbert 1629
Yet another version of the Shelton family is given by Jorge H. Castelli in his Tudor website;
1250 he maps out the early generations as follows:
1.	John Shelton
2.	Nicholas Shelton, b ca 1150, Shelton, Norfolk, England; m Beatrice (?)
       a.	Ralph Shelton
       b.	Peter Shelton
3.	Ralph Shelton b ca 1175, Shelton, Norfolk, England; m Beatrice (?), m Catherine Elleigh (?)
       a.	Henry Shelton
       b.	Nicholas Shelton
       c.	Robert Shelton
4.	Henry Shelton, b ca 1195, Shelton, Norfolk, England; m (?)
       a.	Sir Robert Shelton
       b.	John Shelton of Stradbrooke
       c.	Nicholas Shelton (ca 1212-1257)
       d.	Petronilla Shelton; m Sir Roger De Brome, son of William De Brome
       e.	Peter Shelton
5.	Sir Robert Shelton, b ca 1245, Shelton, Norfolk, England; d 23 Sep 1305 to 25 Aug 1306; m  Isabel (?), b ca 1250 Burnt Illegh, Suffolk, England, d 1268, Cumberland, England
       a.	Sir John Shelton
       b.	Thomas Shelton
       c.	Henry Shelton
       d.	Robert Shelton
       e.	Cecilia Shelton, b ca 1292; Nicholas De CASTELLO of Raveningham (son of Walter De Castello and Sara Roscelyne)
6.	Sir John Shelton, b 1280 Skelton Castle, Skelton, Cumberland, England; d ca 1333