ˈæftɚ ðə kəmplˈiːʃən ʌv hɪz tˈɜːm æz ˈeɪdʒənt dʒˈɛnɚɹəl, bˈɑːɹwɛl ɹᵻmˈeɪnd ɪn lˈʌndən, ˈɛntɚɹɪŋ ˌɪntʊ vˈɛɹiəs bˈɪznəs ˈɪntɹɛsts, bᵻfˌoːɹ ᵻvˈɛntʃuːəli ɹᵻtˈɜːnɪŋ tʊ ˈædəlˌeɪd ɪn nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi, wˌɛɹ hiː ʌnsəksˈɛsfəli stˈʊd fɔːɹ pɹˈiːsᵻlˈɛkʃən ɪn hɪz ˈoʊld sˈiːt ʌv stˈænli.
After the completion of his term as Agent General, Barwell remained in London, entering into various business interests, before eventually returning to Adelaide in 1940, where he unsuccessfully stood for pre-selection in his old seat of Stanley.