John "Jack" Simpson Kirkpatrick (centre of picture) who served under the name John Simpson, was a stretcher bearer with the Australian and New Zealand Army Corps (ANZAC) during the Gallipoli Campaign. After landing at Anzac Cove on 25 April 1915, he obtained a donkey and began carrying wounded soldiers from the frontline to the beach, for evacuation. He did this for three and a half weeks, often under fire, until he was killed. Simpson and his Donkey are a key part of the "Anzac legend".
Ghosts of Gallipoli: Evocative images released on Anzac Day show Allied troops contemplating the ridges they would die in droves failing to capture
The ANZACs in this photo are brothers Harold (left) and Arthur Bartleet. The photo was taken outside of their dugout on Gallipoli on Arthur’s 21st Birthday on the 20th of November 1915. Both brothers survived the war.