fɹʌm nˈaɪntiːnhˈʌndɹɪd sˈɪkstiːn tə nˈaɪntiːnhˈʌndɹɪd twˈɛnti tˈuː, hiː wˈɜːkt æz saɪəntˈɪfɪk ɐsˈɪstənt ɪn hˌɜːpɪtˈɑːlədʒi æt ðɪ ɐmˈɛɹɪkən mjuːzˈiəm ʌv nˈætʃɚɹəl hˈɪstɚɹi ɪn nˈuː jˈɔːɹk, ˌʌndɚ ðə wˈɛlnˈoʊn ɐmˈɛɹɪkən hˌɜːpɪtˈɑːlədʒˌɪsts mˈɛɹi sˈɪnθiə dˈɪkɚsən ænd ɡlˈædwɪn kˈeɪ. nˈoʊbəl.
From 1916 to 1922, he worked as scientific assistant in herpetology at the American Museum of Natural History in New York, under the well-known American herpetologists Mary Cynthia Dickerson and Gladwyn K. Noble.