Grand Secretary & Writer of the Signet
William Mason in his capacity as Grand Secretary (1779-94) accompanied the Grand Master on all his Masonic visits. He was well known for writing his minutes with a flourish, and would rather use a dozen words where one would have been enough. He was present when the Most Worshipful Grand Master Francis Charteris acknowledged Burns as Caledonia's Bard.
William Mason was always in the company of the Grand Clerk Robert Meikle (1779-94), the two were known as the 'fat pair' and never missed a meeting, however, Meikle is not included in the painting. One source says that the artist excluded him in the painting and left his chair empty, however a later Grand Secretary said that Meikle had been painted out!