When the German airship Hindenburg exploded over Lakehurst, New Jersey on May 6,1937, there was a single dog on board.
Joseph Späh, a German acrobatic performer, was bringing the German shepherd named Ulla to the United States as a surprise for his children. Ulla was kept in a restricted freight area of the ship and she did not survive the fire.
At one stage of the investigation into the disaster, Mr Späh was considered a possible saboteur because he had made trips into the restricted area on a regular basis (to feed Ulla). These allegations were never proven.