Qor sii wadida faqradan - Intii lagu jiray Dagaalkii Monterrey 21-24kii Sebtember, 1846, batteriga Duncan waxaa loo qoondeeyay guutada Thomas Staniford ee qaybta William J. Worth. Taylor wuxuu weeraray magaalada dhanka waqooyi, isagoo ciidamada Worth u diray dhanka galbeed si ay u weeraraan. Duqeymaha Duncan iyo William W. Mackall waxay ku lug lahaayeen qabsashada Qasriga Wadaadka 22kii Sebtember. Duncan waxaa loo magacaabay kornayl "si geesinimo leh oo sharaf leh" ee Monterrey. Bilowgii Janaayo 1847, Taylor waxaa lagu amray inuu ku wareejiyo qaybaha Worth iyo Twiggs iyo laba batteriga, oo ay ku jiraan Duncan, ciidanka Winfield Scott. Duncan wuxuu ka qayb qaatay dagaalkii Veracruz
Bishii Maarso 9<unk>29, 1847, Dagaalkii Cerro Gordo bishii Abriil 17<unk>18, iyo dagaal ka dhacay Amazoque bishii May 14.