Rubuta ci gaba don wannan sakin layi - An haifi Arnold a Gainesville, Florida, na farko na 'ya'ya biyar na Major Albert C. "AC" Arnold da tsohuwar Irene Dominick. Wani mai ba da labari mai zurfi, AC Arnold ya yi yaƙi a cikin Yaƙin Boer a gefen Boers; ya shiga Rundunar Sojoji ta Bakwai a matsayin soja; ya kasance mai caca na kogin kogin; ya yi yaƙi tare da Brigadier Janar John J. Pershing a kan Mexico Punitive Expedition
An ba shi lambar yabo ta Musamman don ayyukansa tare da 1/326 Infantry a Château-Thierry a lokacin Yaƙin Duniya na I; ya tafi makarantar lauya; kuma an ba shi matsayi da yawa a cikin Sojojin zaman lafiya kafin ya koma na Bakwai a Fort Lewis, Washington, inda ya mutu a 1932.