When it left San Francisco on March 25, 1921, Conestoga was en route to Tutuila, American Samoa via Pearl Harbor, Hawaii. When Conestoga failed to reach Hawaii by its anticipated arrival date the Navy mounted a massive air and sea search around the Hawaiian Islands, the tug's destination. Unable to locate the ship or wreckage, the Navy declared Conestoga and its crew lost on June 30, 1921, the last U.S. Navy ship to be lost in peacetime without a trace.

A difficulty in obtaining information about the natural behaviour of wild animals is that detailed observations of the activities of different individuals is necessary over long periods of time, and this is especially hard to achieve with sharks.

The wreck, which has been confirmed to be that of 300-year-old frigate Huis te Warmelo was found at a depth of 64 metres near Helsinki. The vessel was once part of the Dutch navy, specifically a region known as West Frisia. The ship was identified on the basis of hull dimensions, location, structure and armament.