mˈʌnɹoʊ wʌzɐ fˈaʊndɪŋ mˈɛmbɚɹ ʌvðə nˈuː zˈiːlənd nˈæʃənəl pˈɑːɹɾi, ænd hˈɛld sɪɡnˈɪfɪkənt ɛɡzˈɛkjuːtˌɪv pəzˈɪʃənz ɪnðə pˈɑːɹɾi, hˈɛlpɪŋ ɪt tə vˈɪktɚɹi ɪnðə nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi nˈaɪn dʒˈɛnɚɹəl ᵻlˈɛkʃən.
Munro was a founding member of the New Zealand National Party, and held significant executive positions in the party, helping it to victory in the 1949 general election.