Hello Jzwolensky:
Most of the theories about David's origins are in the earlier posts. There is evidence that David's eldest son John Barron 1746-1819 was Land Steward at Cheeseburn Grange, the local Manor House owned by the Riddell Family - which basically means that he ran the estate. If we go back further to David, the birth entry's for his children at Stamfordham state that he resided at Grange House Farm. Today Grange House Farm is exactly where it's name suggests, at the entrance of Cheeseburn Grange. I would suggest that David occupied a position much like his son during that particular period 1740's-60's?
Take a drive to Stamfordham today and all of the old farms associated with the Barron's are still there, Grange House, Nesbitt Hill Head, Harlow Hill, Rudchester, Street Houses, Dodley, Ouston, the village is still untouched, the old houses and pubs are still there and of course St Mary's Church and churchyard.