Tuhia he tomokanga mo tenei whitianga - I te Poutu-te-rangi 3, 1847, i tohua a Cadwalader hei rangatira pirihimana, a ka riro i a ia te mana o tetahi pirihimana o nga whakapakari i tukuna ki Winfield Scott i waenganui o Mexico. I tohua tana waeine ko te 2nd Brigade i roto i te wehenga tuatoru hou i raro i a Gideon Pillow. I uru ia ki nga pakanga o Contreras, Churubusco
, me te Chapultepec. Mo ana ratonga i Chapultepec, i whakawhiwhia ia ki te rangatira rangatira i roto i te ope taua, ki te rarangi mai i te Mahuru 13, 1847.