Biography
Clerk to Archibald Stewart, at least in 1763-64. Married to Sarah Mills.1
Life with Boswell
Boswell met Mollison during his stays with Stewart in Holland in 1763 and 1764. On January 11, 1764, he played cards with Mollison and his wife for 7 hours, after which he made a note to "make a firm resolution, a promise, never to play but when necessary, as 'tis low and unworthy." 2