William Jewell was the first child of Humphrie and Jone Jewell, and was baptised on the 27th March 1631, in the Parish of Marhamchurch, Cornwall.
According to the I.G.I. William married Elizabeth Gayeh on the 3rd of November 1656, in Talland, Cornwall, England. It does however seem highly unlikely, given that Marhamchurch (where William was baptised) is at the Northern end of Cornwall, and Talland is on the south coast. Hopefully further research will determine if the marriage of William and Elizabeth involved "my" William.
A further search of the I.G.I., has failed to establish if William and Elizabeth ever had children. It could be that they moved to another County or migrated overseas. There is of course the possibility that they never had children. If anyone has anymore information about William and Elizabeth, or you feel you may be a descendant of any of theirs, please contact me at firstname.lastname@example.org.