Nyorai kupfuurira kweiyi ndima - Muna 1861, pakuvamba kweHondo yaVagari Vemo yeU.S., akanga ari Adjutant weTatu Artillery. Nokukurumidza pashure pacho, akasiya basa kuti abatane nevashandi veGeneral Edwin Vose Sumner's sevakuru "aide-de-camp", vachiwana chinzvimbo cheMajor. Akanga ari chikamu cheuto rePotomac iro rakaona chiito muHondo dzeYorktown, Williamsburg, Fair Oaks, Seven Pines, Savage's Station, Glendale, Malvern Hill, Antietam, Fredericksburg (zvose zvakaitika muna 1862), uye Mine Run.
iyo yakagara kubva muna November 1863 kusvikira muna December 1863.