ɪn ɐdˈɪʃən tə kənˈɛktɪŋ lˈɪbɚɾitˌaʊn ænd wˈɛstmɪnstɚ, ˌɛmdˈiː θˈɜːɾi wˈʌn ɚɹˈɪdʒɪnəli kənˈɛktᵻd fɹˈɛdɚɹˌɪk wɪð lˈɪbɚɾitˌaʊn ɐlˈɔŋ wʌt ɪz nˈaʊ ˌɛmdˈiː twˈɛnti sˈɪks ænd wˈɛstmɪnstɚɹ ænd mˈæntʃɛstɚɹ ɐlˈɔŋ wʌt ɪz nˈaʊ ˌɛmdˈiː twˈɛnti sˈɛvən.
In addition to connecting Libertytown and Westminster, MD 31 originally connected Frederick with Libertytown along what is now MD 26 and Westminster and Manchester along what is now MD 27.