In 1949 the Progress Bus Company was contracted to take students who were attending High, Technical or non-government schools, from Sunbury to Essendon. The company later transported people employed at the Asylum and Greenvale Sanatorium to and from Essendon and Melbourne. Essendon High and Essendon Technical were the closest schools where Sunbury students could receive post-primary education at the time.A black and white photograph of a 1950s passenger bus with the word 'Progress' showing above the windscreen. The bus is parked in a commercial lot.progress bus company, sunbury asylum, greenvale sanatorium, essendon