Arnold waxa uu ku dhashay magaalada Gainesville ee gobolka Florida, waxa uuna ahaa ilmaha ugu horeeya shanta caruur ee uu dhalay Major Albert C. "AC" Arnold iyo Irene Dominick ee hore. AC Arnold oo ahaa halyeey aad u xiiso badan, wuxuu dagaalkii Boer ka soo qayb galay dhinaca Boers; wuxuu ku biiray ciidankii 7aad ee fardooleyda isagoo askari ah; wuxuu ahaa khamaarista doonta webiga; wuxuu la dagaalamay Brigadier General John J. Pershing oo ka tirsan Ciidanka Ciqaabta ee Mexico
; waxaa la gudoonsiiyay iskutallaabta adeegga sharafta leh ee ficillada 1/326 Infantry ee Château-Thierry intii lagu jiray Dagaalkii Koowaad ee Adduunka; wuxuu aaday dugsiga sharciga; waxaana loo qoondeeyay dhowr jago oo ka tirsan Ciidanka Nabadgelyada ka hor inta uusan ku biirin Toddobaad ee Fort Lewis, Washington, halkaas oo uu ku dhintay 1932.