Cyril P. Callister Cyril P. Callister Cyril Percy Callister (16 February 1893 – 5 October 1949) was an Australian chemist and food technologist who developed the Vegemite yeast spread. The son of a teacher and postmaster, and one of seven children, he attended the Ballarat School of Mines and later won a scholarship to the University of Melbourne. He gained a Bachelor of Science degree in 1914 and a Master of Science degree in 1917. In early 1915, Callister was employed by food manufacturer Lewis & Whitty, but later that year he enlisted in the Australian Imperial Force. After 53 days, however, he
Valerie Callister Valerie Callister Valerie Joy Callister (born 16 June 1950) is a former Australian politician. She was born in Leongatha to farmer Herbert Charles Callister and Alma Joyce. She attended local state schools and received a Bachelor of Arts from the Gippsland Institute of Advanced Education, a Diploma of Education from the State College of Victoria, and a Graduate Diploma in Health Administration from La Trobe University. She worked as a schoolteacher, teaching at Traralgon from 1975 to 1981. She joined the Labor Party in 1976, and in a 1981 by-election was elected to the Victorian Legislative Assembly as the member