Browse Items (1 total) Tags: O-12 Browse All Browse by Tag Search Items Sort by: Title Creator Date Added O-12 in Dry Dock Photograph of O-12 submarine in dry dock during World War I. Tags: Eugene R. Roberts, O-12, Roberts Family Collection, Submarine, U.S. Navy, US Navy, World War I, WWI Featured Item Camping on the Okaw River (1917) Photograph of a group of people camping at the Okaw River in 1917.