<prompt> Qedela le nkulumo elandelayo: UPalmer wazalelwa eBuffalo, eNew York. U-Innis waba yingxenye yeqembu lomculo wesonto lendawo waze wajoyina ibutho. Wangena e-United States Military Academy ngo-1842. Wathweswa iziqu ekilasini lika-1846 futhi wamiswa njengelungu lesibili le-brevet ku-2nd U.S. Mounted Rifles. Wangena eMpini yaseMexico naseMelika njengeluthenanthi lokuqala futhi wacashunwa ngesibindi nenkonzo ephawulekayo eMpini yaseContreras nase  <response>: UChurubusco. Isibindi sakhe asibonisa eMpini yaseChapultepec samenza wakhushulelwa esikhundleni sokuba ngukaputeni. NgoMashi 1855 uPalmer wakhushulelwa esikhundleni sokuba ngukaputeni e-US 2nd Cavalry. 