In 1937 wīfode hē Simone Melchior. Hē fōhte in þǣre Ōðeran Woruldgūðe swā dyrnscēawere for þǣre Frenciscan dyrnfierde, and þenden man fōhte hē fand tīd for þǣm hē and Emile Gagnan macodon þæt forme cynnes ābiddungǣðmendra lyftǣðmungsearwa, þe is se aqualung, in 1943, and of þissum cwōm mǣst þǣre dȳfunge mid scuban in þǣre worulde. Hē sōhte gōd lyftǣðmungsearwu æfter þæt twuwa mid oxygenongēanǣðmungsearwe hē hæfde oxygenfyllewærcas and geswogunge.