æt ðɪ ˈɛnd ʌvðə wˈɔːɹ, bˈʌtmən wʌz bɹˈiːfli ɪntˈɜːnd ˌɔn nˈaɪntiːn mˈeɪ nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi fˈaɪv, ænd dˈaɪd ˌɔn twˈɛnti fˈaɪv dʒˈænjuːˌɛɹi nˈaɪntiːnhˈʌndɹɪd fˈoːɹɾi sˈɛvən æt hɪz hˈoʊm ɪn stˈɑːkdoːɹf, nˌɪɹ mjˈuːnɪk.
At the end of the war, Buttmann was briefly interned on 19 May 1945, and died on 25 January 1947 at his home in Stockdorf, near Munich.