A loose forward, Mahoney represented Bush at a provincial level, and was a member of the New Zealand national side, the All Blacks, from 1929 to 1936.

He played 26 matches for the All Blacks including four internationals.

[1] He served with the 2nd New Zealand Expeditionary Force (2NZEF) during World War II, being taken prisoner of war in 1942.

[2] Mahoney died at Pahiatua on 13 July 1979,[1] and was buried at Pahiatua Mangatainoka Cemetery.

This biographical article relating to New Zealand rugby union, about a person born in the 1900s, is a stub.