kˈoːɹəm lˈɛft ɹˈeɪsɪŋ ɪn nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi θɹˈiː, bˌʌt ɹᵻtˈɜːnd ɪn nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi ˈeɪt æz ɐ mᵻkˈænɪk, wˈɜːkɪŋ fɔːɹ hˈæɹi mˈɪlɚz fˈaɪv kˈɑːɹ tˈiːm æt ðɪ ˌɪndiənˈæpəlˌɪs fˈaɪvhˈʌndɹɪd.
Corum left racing in 1933, but returned in 1938 as a mechanic, working for Harry Miller's five car team at the Indianapolis 500.