In the same year, he also won the men's doubles title, partnering Stanley Eaton. Gemmell was Western Australia's top player during the 1920s. In 1924 Gemmell opened a store which sold sports equipment with fellow player Keith McDougall.
The same year that he won the men's doubles title with Stanley Eaton, Gemmell also opened a sporting goods store in 1924 with his fellow player, Keith McDougall. He was Western Australia's top tennis player during the 1920s.