He played junior for the Guelph Indians from 1936–38 and turned pro with the Detroit Red Wings in 1938-39. Until 1942, he split time between the Wings and the minor pros. Bush got into 26 NHL games, scoring 4 goals and 6 assists. This was to be the extent of his NHL time. From 1942-45 he played with the senior Toronto RCAF Flyers and the Dartmouth RCAF teams. In 1946 he returned to the pros. He played four seasons in the American Hockey League and then two seasons in the senior ranks. Bush retired in 1951 after playing for his hometown Collingwood Shipbuilders.