Rubuta ci gaba don wannan sakin layi - Kirn ya kammala karatu daga Kwalejin Sojan Ruwa na Amurka a 1932 kuma ya zama matukin jirgi. A lokacin Yaƙin Duniya na II ya yi aiki a cikin yakin Solomon Islands
, gami da Yakin Edson's Ridge, a lokacin da aka ba shi Gicciye na Navy da Gicciye mai Fitowa. Daga baya a cikin aikinsa an ba shi lambar yabo ta Navy Distinguished Service Medal don hidimarsa a matsayin United States Naval Attaché da United States Naval Attaché for Air a Ofishin Jakadancin Amurka, London.