dʒˈɛfɹi fɹˈænsɪs hˈæɾɚslismˈɪθ dˈiː.fˈɪl, ˌɛfˌɑːɹɹˌɛssˈiː, ˌɛfˌɑːɹdʒˌiːˈɛs, fˈeɪnə twˈɛnti tˈuː ˈeɪpɹəl nˈaɪntiːnhˈʌndɹɪd twˈɛnti θɹˈiː twˈɛnti wˈʌn dʒuːlˈaɪ tˈuː θˈaʊzənd twˈɛlv wʌz ɐn ˈɪŋɡlɪʃbˈɔːɹn kɐnˈeɪdiən dʒɪˈɑːlədʒˌɪst ænd ɡlˌeɪsɪˈɑːlədʒˌɪst, ɹˈɛkəɡnˌaɪzd æz ɐ paɪənˈɪɹɪŋ ɹᵻsˈɜːtʃɚɹ ʌv nˈɔːɹðɚn kˈænədə.
Geoffrey Francis Hattersley-Smith D.Phil, FRSC, FRGS, FAINA  (22 April 1923 – 21 July 2012) was an English-born  Canadian geologist and glaciologist, recognized as a pioneering researcher of Northern Canada.