James Tassie (1735-1799) born in Pollokshaws near Glasgow in Scotland, was a stonemason who turned artist/entrepeneur. He invented a glass-paste composition which he used amidst the Classical Revival by creating an excellent series of casts of antique gems, cameos and intaglios in colored potash-lead glass. He modelled various series including one of portrait busts of distinguished figures of the latter 18th Century, including Scottish notable figures, many of them modelled from life. Tassie established himself as the leading supplier of portrait medallions. A collection of portraits by Tassie are in the collection of the National Portrait Gallery.
Archibald Grahame was originally a writer in Glasgow. On the failure of the firm of Matthew and John Orr, who were ruined by working coal on their estates of Camlachie and Gateside, these properties, along with Barrowfield, were sold to Robert Scot of Aikenhead, and James Dunlop of Garnkirk. The latter gentleman was also unfortunate, and the shares of the estates belonging to him passed into the hands of Mr. Grahame, who also purchased besides, from John Buchanan, M.P., son of Thomas Buchanan of Ardoch, the estate of Dalmarnock. Archibald Grahame was for many years cashier of the Thistle Bank, established in 1761. He was a member of the first Board of Directors of the Chamber of Commerce, and Chairman in 1790-91-98-99.