pˈɑːnsɑːnbi wʌz ᵻlˈɛktᵻd mˈɛmbɚɹ ʌv pˈɑːɹləmənt fɔːɹ pˈuːl ɪn wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd twˈɛnti sˈɪks ænd hˈɛld ðə sˈiːt ʌntˈɪl wˈʌn θˈaʊzənd ˈeɪthˈʌndɹɪd θˈɜːɾi wˈʌn, wˌɛn hiː lˈɔst ɪɾ ɪn ɐ baɪᵻlˈɛkʃən tə lˈɔːɹd ˈæʃli.
Ponsonby was elected Member of Parliament for Poole in 1826 and held the seat until 1831, when he lost it in a by-election to Lord Ashley.