He rejoined the Education Department in August 1923 as an assistant teacher at Hurstville Junior Technical School and taught there until his resignation to contest the federal election in 1928.

Tully was also a vice-president of the St George Rugby League Club.

[1][2] In 1928, he was elected to the Australian House of Representatives as the Labor member for Barton, defeating incumbent Nationalist Thomas Ley, and was re-elected in 1929.

He retained the seat until 1931, when he was challenged in the wake of the 1931 Labor split by both the United Australia Party's Albert Lane and Lang Labor's John Eldridge, the member for Martin.

This article about an Australian Labor Party member of the House of Representatives is a stub.