Alyson,
I found the newspaper report in the findmypast collection. From the Aberdeen Press & Journal, 30 April 1834, it reads "At Falkirk, on the 14th., Ann Reid, spouse of Thomas Gibson, A.M., Rector of the Grammar School there." A double check on scotlandspeople 479/130/474 and the burial register gives us "Parish Church-yard April 19. Ann Reid wife of Thomas Gibson Grammar School Master of Falkirk"
There is mention in Schools and Schoolmen of Thomas being elected assistant to his brother in Forfar in June 1805 before settling in Falkirk the following year.
Many thanks for the links. I will follow them up later as I have no time at the moment. I run the local art group here and we are gearing up for this year's exhibition, hanging tomorrow and showing Saturday and Sunday. The clear up starts on Monday so, busy times!
Jack