Hopefully, I'll have some photos to add to this post in the future. Well done to Paul for persisting with his search to locate Frank's family.
The returned medal tally is now 919.
Update 20 June 2011
I received the following from WO1 Herbig today:
This photos shows WO1 Dave Hutton, who found the medals, and WO1 Paul Herbig returning Frank Arbon's medals to his son Roy Arbon at the Randwick Barracks Sergeant's Mess.