Louis Willyama Avery was born on July 15, 1891, and moved to Adelaide from Broken Hill for his education. He attended St Peter’s College and later the SA School of Mines, where he studied Engineering.
He was working in Broken Hill when war was declared, and he decided to enlist for service in August 1914. He was a member of the 3rd Field Engineers, A.I.F, 1st Australian Division, 3rd Brigade, and landed at Gallipoli on 25 April, 1915. Later in the war he fought in Europe, being awarded a Military Medal in 1917.
Following his time in the Dardanelles, Avery was hospitalised suffering from typhoid fever, and letters from his father to military administration show how difficult it was for families in Australia to find out information about the health of soldiers overseas.