Edgar E. Mauer from St. Louis, Missouri was twenty eight when he joined the crew. He had been on the USS Niagara AGP-1 when it was sunk by a Japanese air attack on May 22, 1943. On the PT-109 he would be quartermaster, cook and signalman. He would also join Kennedy, Maguire, Drewitch, Kowal and Drawdy on the PT-59.