hiː wʌzɐ mˈɛmbɚɹ ʌvðə juːnˈaɪɾᵻd stˈeɪts dʒˌɪəlˈɑːdʒɪkəl sˈɜːveɪ dˈʊɹɹɪŋ ðɪ ɛksploːɹˈeɪʃənz ʌv jˈɛloʊstˌoʊn nˈæʃənəl pˈɑːɹk, fɹʌm wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti wˈʌn tə wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd sˈɛvənti fˈaɪv.
He was a member of the United States Geological Survey during the explorations of Yellowstone National Park, from 1871 to 1875.