The man on the right in the attached photo is, I believe, Tom Grainger 1888-1931. He was born in Stanningley, West Yorkshire, migrated to Sydney, Australia, in 1909 and enlisted in the Australian Imperial Force on 19 April 1918 during the First World War.
I am trying to work out who the other man might be, on the left. Tom Grainger had a brother George Grainger 1895-1916 who also served in the AIF and died in France on 17 August 1916. I was wondering whether it could be him, but he was dead before his brother enlisted so maybe not?
Does anyone know what the uniform of the man on the left signifies? Perhaps this might help me narrow it down.