fˈɑːloʊɪŋ ðə pˈæsɪdʒ ʌvðə spɹˈaʊl ɹˈoʊd bˈɪl ɪn nˈaɪntiːnhˈʌndɹɪd ɪlˈɛvən, ðə fˈɔːɹʌnɚ tə pˌiːˈeɪ wˈʌnhˈʌndɹɪd θɹˈiː wʌz ɹˈaʊt θˈɜːɾi θɹˈiː, wˌɪtʃ ɹˈæn fɹʌm lˈuːɪstˌaʊn tə hˈʌntɪŋdən.
Following the passage of the Sproul Road Bill in 1911, the forerunner to PA 103 was Route 33, which ran from Lewistown to Huntingdon.