John Grant Sangster was born November 17, 1928 in the Melbourne suburb of Sandringham, Victoria, Australia. He was an only child that attended primary schools in Sandringham and Vermont, and then Box Hill High School. While at high school he taught himself to play trombone and with a friend, Sid Bridle, formed a band.

In 1946 he started a civil engineering course at Melbourne Technical School. Two years later Sangster performed at the third annual Australian Jazz Convention, held in Melbourne. By the following year he led his own ensemble, John Sangster's…