[1] Gray returned to Australia around 1926 and moved to Queensland, becoming a farmer and organiser for the Douglas Credit Party.

[1] He contested the 1935 state election for the party, and polled 46.5 percent in the seat of Albert, losing to Tom Plunkett of the CPNP.

[2] On 4 August 1939 he was the leader of a raid comprising thirty-seven members of the League for Social Justice on Parliament House in the Queensland capital of Brisbane.

Returning to Brisbane, he became an accountant for Queensland Cement & Lime Co. and owned a business (run by his wife Elsa) at Bowen Hills.

[1] In 1946, the Gray moved to Toowoomba, where he managed Co-operative Sales and Service Co. and joined the Australian Labor Party.

[1] His wife Elsa ("Bray") Gray OAM was an alderman with Rockhampton City Council (1973–91) and was State secretary of the Australian Local Government Women's Association for eight years.