Career
Hartnett came to Street Kilda from North Launceston in Tasmania and returned to that club after just one VFL season. He then played with Cananore before trying again at Street Kilda in 1934. Hartnett represented the VFL in 1935 and kicked six goals in an interstate match against South Australia, to go with the 22 goals he kicked for Street Kilda that year.
In 2005 he was inducted into the Tasmanian Football Hall of Fame.