Kammala jumla mai zuwa: Elmer Vernon Jack Tower (Jack Tower) wani direba ne na Amurka da kuma motar motsa jiki daga Flint, Michigan. Hasumiyar ita ce ta fi sauri a cikin 'yan takara a gasar.
1913 Indianapolis 500, amma ya fara daga jere na baya kamar yadda aka ƙayyade grid ta hanyar zane-zane. Tower ya kasance manajan a Studebaker, wanda kuma ya gudanar da kamfanin keke. Ya ci gaba da kasancewa cikin masana'antar kera motoci kuma yana da takaddun shaida da yawa ga sunansa game da masana'antar kera motoci. Waɗannan sun haɗa da faifan mahaɗin, na'urar ginin mahaɗin, na'urar watsawa, farantin mahaɗin da ƙirar motar.