ɐ bˈʊk diːtˈeɪlɪŋ ðɛɹ fˈaɪndɪŋz wʌz pˈʌblɪʃt ɪn tˈuː θˈaʊzənd sˈɪks tˈaɪɾəld ðɪ ɪnvˌɛstɪɡˈeɪʃən ʌvðə ɡɹˈɪnəl həwˈaɪən mˈɪʃənˌɛɹiz baɪ ðɪ ˈɛkspɜːt kəmˈɪɾi ʌvðə ɹˈɔɪəl fɪlɐtˈɛlɪk səsˈaɪəɾi lˈʌndən baɪ pˈætɹɪk pˈɪɹsən.
A book detailing their findings was published in 2006 titled The Investigation of the Grinnell Hawaiian Missionaries by the Expert Committee of the Royal Philatelic Society London by Patrick Pearson.