hiː wʌz sˈʌbsᵻkwəntli ɐpˈɔɪntᵻd tə ðə fˈækəltiz ʌvðə jˌuːnɪvˈɜːsᵻɾi ʌv ʃᵻkˈɑːɡoʊ nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi wˈʌn dˈæʃ nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː ænd ðə jˌuːnɪvˈɜːsᵻɾi ʌv mˈɛɹɪlˌænd nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɛvən dˈæʃ nˈaɪntiːnhˈʌndɹɪd sˈɛvənti sˈɪks, wɪð wˌɪtʃ hiː kəntˈɪnjuːd tə wˈɜːk ʌntˈɪl hɪz dˈɛθ.
He was subsequently appointed to the faculties of the University of Chicago (1941-1943) and the University of Maryland (1967-1976), with which he continued to work until his death.