[3] Johnston won a silver medal in the 3000 metre team event at the 1924 Summer Olympics, together with Bertram Macdonald and George Webber.

[1] Johnston finished second behind William Seagrove in the 1 mile event at the 1924 AAA Championships[4][5] and finished second behind Jack Webster in the 4 miles event at the 1926 AAA Championships.

[6][7][8] He continued to contribute to British athletics after he retired from running by coaching several prominent long-distance runners including Jim Peters, who held the world record in the marathon for six years, as well as Stan Cox and Fred Norris.

He was a founding member of Herne Hill Harriers and earned his living in the insurance business.

This article about an Olympic medallist in athletics of the United Kingdom is a stub.