According to information taken from the International Genealogy Index (I.G.I.), William Jewell was baptised on 1st February 1623, in the Parish of Marhamchurch. He was the fifth child of Digory Jewell and Johan Shearme. A subsequent search has discovered that William married a Katherine Johnson on the 10th of August 1641 in Launceston, Cornwall, England.
A further search if the I.G.I., has unfortunately found no trace of any children born to William and Katherine in Cornwall. It is quite possible that they moved to another county, migrated overseas, or maybe they never had children.
Hopefully future research will determine what became of William and Katherine. In the meantime if anyone has anymore information about William and Katherine, or you feel you may be a descendant of theirs please contact me at email@example.com