Dick Grigg was looking for ancestors of William Houston b1756 in Franklin PA and Catherine Boyle b1756 in Bucks PA.
Wm. & Catherine Houston had son James Houston b.1776 Franklin PA m.Sep 7 1813 Mary M. Ettleman b. 1784 Bucks PA
He noted that Wm. Houston's parents were Wm. Houston & Nancy Hindman from Ireland.
Perhaps Catharine Heston / Houston may have been Catharine Adair and married into this Houston family ?