H. M. Martin and Son was a South Australian winemaking company based at Stonyfell in the Adelaide Hills.
Harry learned much of the art and science of winemaking from Henry Tyler, Crompton's cellar manager, and when, in the economic depression of 1884, the business was taken over by the Bank of Adelaide, leased then sold to quarry operator Henry Dunstan (1841 – 22 May 1915),[1] Harry was taken on as his accountant, and purchased Crompton's house "Ilfracombe" on Stonyfell Road in 1888.
In 1902 Harry took on his younger son Ronald, who had recently graduated from Roseworthy Agricultural College and leased the vineyards and cellars from Dunstan, and in 1934 purchased the property from the Dunstan estate, having in 1926 set up the company H. M. Martin and Son to purchase their business and provide working capital.
[2] Harry died two years later and Ronald became chairman of directors, with his cousin (Wilfred Francis) Darwin Clark (1892–1943) in charge of the cellars and vineyards.
In 1972 the company was taken over by Dalgety Australia, and by 1978 by Seagram's, at which time the winemaking part of the business at Stonyfell was wound up.