Joseph Gnonlonfoun wɛ nyí hwɛɖɔtɔ́, toxóɖɔtɔ́ Benɛɛtò tɔn.
É jǐ ɖo xwe 1943 ɖo xɔgbonu danxomɛ hwenu nɔcyɔvi wɛ ɖo jɔwunjɔja mɛ ĕ e yi wemaxɔmɛ dokɔtɔn fo ɔ, e ɖido yɛhwenɔgleta bo na tɔn yɛhwenɔ.
Ɖo xwẹ̀ 1962 ɔ e ɖo kunúɖéwema kplɔnyiji b"alavɔtɔn ɖo glexwé.