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
Railways in Melbourne on common sections of tracks. All services become 24 hour from Friday morning to Sunday evening, with at least one departure every hour after 12am. Along with other Australian railways, Melbourne uses the British terminology of "up" and "down", with "up" being defined as toward Flinders Street station in the CBD. The myki smart-card ticketing system is the main ticketing system currently in use across Melbourne, introduced in 2010. Prior to December 2012 Melbourne also used a magnetic strip paper ticket system known as the Metcard, first introduced to the railway network in 1996. On 29 December 2012 Metcard was