bˈɑːɹwɛl ˈɛntɚd ðə sˈaʊθ ɔːstɹˈeɪliən hˈaʊs ʌv ɐsˈɛmbli ɪn nˈaɪntiːnhˈʌndɹɪd fˈɪftiːn æz ðə lˈɪbɚɹəl jˈuːniən mˈɛmbɚ fɚðə sˈiːt ʌv stˈænli.
Barwell entered the South Australian House of Assembly in 1915 as the Liberal Union member for the seat of Stanley.