He began his artistic career as a painter, and exhibited in 1778 at the Royal Academy, showing A Moravian Peasant, The Shepherdess of the Alps, and a portrait.
[3] The union had issue of two sons and two daughters including Phillip Augustus Gaugain, a portrait painter.
He showed four of these, printed in colours – Annette, Lubin, May-day, and The Chimney Sweeper's Garland– at the exhibition of the Free Society of Artists in 1783.
[4] Gaugain's print after Joshua Reynolds of James Beattie in William Forbes' account of his life was much advertised in Scottish newspapers in 1806 and may have encouraged Gauguin to move to Edinburgh.
His print of members of the Scottish bench and bar after Benjamin William Crombie was advertised in the Glasgow Herald of 24 February 1826, but he was chiefly in business as a lace merchant with his son John James until his death aged 75 'of old age' on 3 October 1831 at 3 Leslie Place, Stockbridge, Edinburgh.