ðɪs ɹˈaʊt wʌz tɹænsfˈɜːd tʊ ˌɛfˈɛm ˈeɪɾi fˈoːɹ ˌɔn ɑːktˈoʊbɚ twˈɛnti sˈɪks, nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi θɹˈiː wɛn pˈoːɹʃənz ʌv ˌɛsˈeɪtʃ nˈaɪnti wˈʌn wɜː səbmˈɜːdʒd ɪnðə ɹˈaɪzɪŋ lˈeɪk tɛksˈoʊmə.
This route was transferred to FM 84 on October 26, 1943 when portions of SH 91 were submerged in the rising Lake Texoma.