What type of transportation does John Boulger and Jack Young have in common?
John Boulger: John Boulger (born 18 June 1945 in Adelaide, South Australia) is a former international motorcycle speedway rider. Jack Young (speedway rider): Jack Ellis Young (31 January 1925 in Adelaide, South Australia – 28 August 1987 in Adelaide) was a Motorcycle speedway rider who won the Speedway World Championship in 1951 and 1952.
motorcycle