Jack Trinkoon, a young man from a Russian-Polish family from Riga, came to Brisbane with his parents and siblings in 1911. He worked as a station hand, and then as a carpenter in Brisbane.
He first enlisted when he was just 17 in December 1915, but got into trouble and was discharged after being court martialled for desertion. As soon as he was released, he re-enlisted again and served in Egypt with the 14th Australian General Hospital.
After the war he lived in Brisbane, working as a cabinetmaker and motor body builder. In 1921 he married an Australian girl, Matilda Jane Stokes. Their son Thomas John served in the AIF during WWII.
Samuel Seuff, a Jewish man from Shiauliai in Lithuania, visited Australia during the war as a seaman.
He first enlisted in the AIF in January 1916, but was discharged a few days later. During the next visit in December 1916 he enlisted again and was sent to Europe with the 45th battalion. While aboard the ship he attempted to commit suicide and was returned to Australia and discharged.
Upon return he lived in Sydney, working as a wharf labourer.