ɪn nˈaɪntiːnhˈʌndɹɪd sˈɪksti wˈʌn, hiː bɪkˌeɪm ðə fˈɜːst pˈɜːsən tə klˈaɪm mˈaʊnt wˈɪslɚ, sˈɛkənd hˈaɪɪst pˈiːk ˌɔn ˈɛlɪsmˌɪɹ, ænd ˌɔn fˈaɪv dʒˈuːn nˈaɪntiːnhˈʌndɹɪd sˈɪksti sˈɛvən lˈɛd ðə sˈɛkənd tˈiːm tə ɹˈiːtʃ ðə tˈɑːp ʌv bˈɑːɹboʊ pˈiːk ðæt dˈeɪ.
In 1961, he became the first person to climb Mount Whisler, second highest peak on Ellesmere, and on 5 June 1967 led the second team to reach the top of Barbeau Peak that day.