Teams J Backen played for

MiscellaneousAustralian Capital Territory (1947/48-1956/57)
 Southern Districts of New South Wales (1949/50-1950/51)
 Southern New South Wales (1950/51)
 Australian Capital Territory-Southern Districts (1953/54-1954/55)
 Australia Prime Minister's XI (1954/55)
 Australian Capital Territory-Southern Districts-Southern Tablelands (1954/55)