Hi Steve
I am very interested in the document you found giving the names of the grandchildren of William Bartram and Elizabeth Henderson. Although I had these names in my tree I now have you as another source for this information. I have traced myself back 10 generations from the present to George Bertram/Bartram born in Glenholm who I think is your William Bartram’s brother or in fact half-brother.
Their father was William Bartram b about 1707 d 19 Oct 1777 married to Margaret Craig b 1724 died 29 April 1756. In 1755 the parish OPR says he went off with Agnes Cosbie and had Margret b 7 Oct 1755, Margrat b 1759 and William b 10 Jan 1760. I have a family document and tombstone information that indicates my George was also the son of William b 1707, but by Margaret Craig, making George and your William half-brothers.
However I cannot find any other source to confirm that George was the son of William, b 1707. I also have no information about this William, any siblings, although I think his father was Peter Bartram b ? d 30Oct 1739, and mother Hellen Mowatt b? d 30 Oct 1739. Have you any other information from your family records that might help.
Thanks
Janet