Alan "Joe" Wentworth Weston was born on 9 July 1902 at Petersham, New South Wales to Adelaide Jane (née Norris) and Alick Horsley Weston. One of eight children, he grew up on the South Coast of New South Wales where his father worked as a grazier. In 1922 he travelled overseas to visit America with his aunt Amy Sophia Weston. In 1927, at the age of 25 he married Jean Myee Tindal and they lived in North Sydney while Weston worked as a salesman. However in April 1938 they divorced, and the next year Alan Wentworth Weston married Elizabeth Chillas in North Sydney.

Alan Wentworth Weston enlisted in the Second Australian Imperial Force at Paddington, New South Wales on 17 July 1940. He served as a sergeant in the 2/18 Australian Infantry Battalion. In July 1943 his family were notified that he had been taken a prisoner of war in a Japanese run camp. He spent his time in prisoner of war camps across Singapore, and was involved in an underground wireless network that received world news and messages from family to share with other prisoners. Weston was released after the war and discharged from the 8 Corps of Signals on 13 February 1946.

After the war, he returned to his work as a salesman and lived in Kirribilli, New South Wales, with his wife Elizabeth. They later moved to Killara, New South Wales. Alan Wentworth Weston died on 25 September 1987, nine years after his wife Elizabeth. They are buried in his home town of Albion Park, New South Wales.