Cyril P. Callister called Vegemite, first sold by Fred Walker & Co in 1923. Working from the details of a James L. Kraft patent, Callister was successful in producing processed cheese. The Walker Company negotiated a deal for the rights to manufacture the product, and in 1926, the Kraft Walker Cheese Company Ltd was established. Callister was appointed chief scientist and production superintendent of the new company. Between 1919 and 1927 he had 3 children (two boys and a girl) named Ian, Bill and Jean. They were the original vegemite kids. During World War II Ian unfortunately died Callister got his Doctorate from
Cyril Hamilton Cyril Hamilton Major Cyril Penn Hamilton (12 August 1909 – 10 February 1941) was an Australian born English soldier and sportsman. He played racquets, squash, hockey and first-class cricket and rose to the rank of Major in the Royal Artillery. Hamilton was born in Australia in 1909 and died near Keren in Eritrea at the age of 31 in 1941 whilst on active service during World War II. Hamilton was born at Adelaide in South Australia in 1909. He was educated at Wellington College in England between 1922 and 1927 where he played cricket in the school First XI and