In the letter by Anne of Longstowe (1798-1852) to her grandson James Henry (1827-1905) she states that Thomas the Blacksmith and this William are descended from the "Irish Fortescue". This letter by Anne checks out in every other detail giving credence to the claim.
William FORTESCUE and Elinor GILBERT of Thurning were married in 1689. Elinor GILBERT of Thurning29 was born on 18 October 1664. She died on 14 December 1736 in Thurning, Hunts. Feofment of Elinor Gilbert of Thurning NRO NPL1733
William FORTESCUE and Elinor GILBERT of Thurning had the following children: