From the Great War Forum, there is a thread of Favourite Gravestone Inscriptions. One is:
I fought & died in the Great War to end all wars have I died in vain?
I have fought in the Great War, the War to end all Wars. If there are to be more Wars then I have died in vain.
It is on the headstone of Sergeant Phillip James Ball MM, 44th Australian Imperial Force.
He was born in Birmingham, England and later moved to Western Australia to become, I believe, a farmer.
He enlisted 24/01/1916 and was killed 28/03/1918 aged 21.