<prompt> Qedela umusho olandelayo: Wakhonza ebuthweni laseSavannah, eGeorgia njengelungu lesibili le-Third Artillery kwaze kwaba ngo-1846, lapho aqokwa khona ukuba ayokhonza. Wakhushulwa waba yi-First lieutenant ngoJuni 18, 1846, futhi wabamba iqhaza elibonakalayo eMpini yaseMexico naseMelika; wayekhona eTampico futhi  <response>: UVera Cruz. - Uyazi? U-Beckwith wayesebenza ePacific Railroad Survey kusukela ngo-1853 kuya ku-1857 noJohn Williams Gunnison. Ngokuphawulekayo, i-First Transcontinental Railroad yalandela indlela ayeluleka ngayo. Umbiko wakhe, owawuhlanganisa nokuhlola kabanzi iGreat Salt Lake, wawunolwazi oluningi ngezitshalo, izilwane, isimo sezulu nezici zezwe ayelihlolile. Wathatha isikhundla sikaGunnison njengomholi wocwaningo ngemva kokufa kwakhe, futhi watusa mathupha umzila wesitimela. Wabuye wabandakanyeka ekwakhiweni kwemigwaqo yezempi eNebraska naseKansas, phakathi kuka-1857 no-1859. 