DO you have an estimated birth date for David? I am attempting to track the Drennens of Pa and have come to a brick wall. My John was born in Pa 1788 and I believe him to be the son of Hugh Drennan of Fleming Co., KY. I do know that Hugh and his brothers were in Cumberland Co., at the out break of the Big War. Then moved to Westmoreland and Allegheny counties afterwards. Would like to know if they may possibly fit into David's family. They were born in Antrim County Ireland and came here between 1770 and 1772. Would love to find out something from Ireland on them. Good luck on your trip. Wish I was able to go with you.