Cyril P. Callister the University of Melbourne in 1931, with his submission largely based on his work in developing Vegemite. He was a prominent member of the Royal Australian Chemical Institute, helping it to get a Royal Charter in 1931. Callister died in 1949, following a heart attack and is buried at Box Hill Cemetery. A biography of Callister, "The Man Who Invented Vegemite", written by his grandson Jamie Callister, was published in 2012. Callister is the great uncle to Kent Callister, a professional snowboarder who has competed at the Winter Olympics for Australia. Cyril P. Callister Cyril Percy Callister (16 February 1893
Cyril P. Callister was withdrawn from active service on the order of the Minister for Defence and assigned to the Munitions Branch, making explosives in Britain. Following the end of World War I, he married Scottish girl Katherine Hope Mundell and returned to Australia and resumed employment with Lewis & Whitty in 1919. In the early 1920s, Callister was employed by Fred Walker and given the task of developing a yeast extract, as imports from the United Kingdom of Marmite had been disrupted in the aftermath of World War I. He experimented on spent brewer's yeast and independently developed what came to be