ˌɔn mˈɑːɹtʃ θɹˈiː, nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi wˈʌn, ˌɛsˈeɪtʃ sˈɛvənti tˈuː spˈɜː tə swˈiːt hˈoʊm wʌz ˈædᵻd, bˌʌt wʌz nˌɑːt pˈɑːɹt ʌvðə stˈeɪt hˈaɪweɪ sˈɪstəm ɪt wʌz ˈædᵻd tə ðə stˈeɪt hˈaɪweɪ sˈɪstəm ˌɔn mˈɑːɹtʃ sˈɪkstiːn, nˈaɪntiːnhˈʌndɹɪd θˈɜːɾi sˈɛvən.
On March 3, 1931, SH 72 Spur to Sweet Home was added, but was not part of the state highway system (it was added to the state highway system on March 16, 1937).