This collection relates to the lives of Ross and Keith Smith. After spending part of their childhood on Mutooroo Station, near Broken Hill, the boys were educated at Queen’s School in North Adelaide. In 1910, Ross joined the Australian Mounted Cadets and was selected to represent South Australia on an international tour. He enlisted in August 1914, joining the 3rd Light Horse Brigade, and fought in the Dardanelles and at Romani before transferring to the Australian Flying Corps. Keith joined the Royal Flying Corps in Britain in 1917.