In the society of the members he assumed the name of "Isaac Bickerstaff," and later of "Gawin Douglas," the latter partly in memory of his maternal grandfather Douglas of Muthill (Perthshire), and partly to give point to his boast that he was a "poet sprung from a Douglas loin."
With many others he was carried to the castle of Doune in Perthshire, but soon effected his escape.
This type of structure is somewhat common in Ireland, but the only Scottish examples are those at Brechin, Abernethy in Perthshire, and Egilshay in the Orkneys.
Sir David married Miss Campbell-Preston, a Perthshire heiress, in r81o.
Roe were formerly abundant in all the wooded parts of Great Britain, but were gradually exterminated, till a century and a half ago they were unknown south of Perthshire.