What stood out to me: Hermann Doehner was general manager of Beick, Felix y Compania, a prominent German wholesale drug company headquartered in Mexico City, Mexico. Mrs. Doehner, however, was apprehensive about the flight and did not particularly want the family to travel by air.
Colonel Fritz Erdmann Along with fellow Luftwaffe officers Major Hans-Hugo Witt and Lieutenant Claus Hinkelbein, Erdmann was sent along on the flight in order to observe the cutting-edge long-range navigational techniques and weather forecasting practices employed by the Hindenburg's command crew. This required the three Luftwaffe men to make frequent visits to the ship's control car – according to Major Witt, perhaps half a dozen visits per day. Much has been made over the years of a claim made by author Michael Mooney in his 1972 book The Hindenburg that Erdmann, Witt and Hinkelbein were aboard the ship not as mere observers, but as security officers tasked with finding and stopping a potential saboteur.