There must be many WW1 group photos out there in which one soldier is known and the others are unknown. This photo shows Corporal James Anderson on the front right, but who are the others? If you have photos like this, an interesting site where you might post them is Lost Heroes of the Great War.
I have created a commemorative online database of the WW1 volunteers of Essendon and Flemington in Victoria, with a blog to support the website: see link below.
I have other websites and blogs which follow other interests.