In 1943, he won both his club's best and fairest and the Sandover Medal, finishing with 28 votes to become the first Perth player to win the award.

[b][3] Moriarty enlisted in the Army in September 1943, serving as a gunner in the 2nd Medium Regiment of the Royal Australian Artillery.

[4] He returned to Western Australia in time for the first game of the 1946 season, and was discharged from service in September 1946.

The game at Broken Hill attracted 5,000 spectators paying £389/15/9 where he was named in the best but did not kick a goal.

[10] Moriarty was inducted into the West Australian Football Hall of Fame in 2010,[5] and died at Sir Charles Gairdner Hospital in Nedlands on 23 October 2011, after a short illness, with The West Australian noting he was a "dour ball player with strong team values".