Parapedia - USS Proteus

The collier USS Proteus (AC-9) was laid down on 31 October 1911, by the Newport News Shipbuilding and Dry Dock Company, and launched on 14 September 1912. With the threat of war looming, she was commissioned on 9 July 1913, to the U.S. Navy, Master Robert J. Easton, Naval Auxiliary Service, in command.

The Proteus was lost at sea to an unknown cause sometime after 23 November 1941.

There are no German U-boat claims for this vessel.

A memorial listing of her crew can be found at the CWGC Halifax Memorial. A Canadian website suggests the Proteus's possible fate.

Two of USS Proteus' three sister-ships, Cyclops and Nereus, also vanished without a trace in the Bermuda Triangle area while doing similar duty during World War I and World War II, respectively. Her third sister-ship, Jupiter was converted into the very first aircraft carrier of the United States Navy.