Mezue ahịrịokwu na-esonụ: Akụkọ ihe mere eme nke battalion nwere ike ịgbaso azụ na 15 May 1846 mgbe e guzobere otu ụlọ ọrụ nke ndị na-egwupụta akụ, ndị na-egwupụta akụ, na ndị na-egwupụta akụ na West Point, New York. Alpha Company, 1st Engineer Battalion bụ onye si n'otu ahụ pụta. Ndị agha ahụ enwetala ihe nrite 67 na ihe ngosi mkpọsa na ihe nrite mba asatọ. Ụlọ ọrụ A jere ozi n'oge agha Mexico na America nke 1846, na-ekere òkè na
Mgbasa ozi nke Veracruz na ịwakpo elu nke Chapultepec na Mexico City.