Bilowgii Dagaalkii Sokeeye ee Mareykanka wuxuu hakad galiyay waxbarashada Corson markii uu ku biiray Shirkadda K ee Ciidanka Lugta 4aad ee Pennsylvania bishii Abriil 1861, waxaana loo magacaabay sarkaal bishii Luulyo 1861. Markii uu dib ugu soo laabtay Penn dabayaaqadii sanadkaas, wuxuu u adeegay sidii arday caafimaad oo ka tirsan isbitaalka ciidanka ee ku yaal Cherry iyo Brad Streets inta uu wax ku baranayo dugsiga. Wuxuu ku biiray kaydka 6-aad ee Pennsylvania (35-aad ee Pennsylvania Volunteers) isagoo ahaa caawiye dhakhtar qalliin bishii Maarso 1863 kadib markii uu ka qalin jabiyay shahaadada MD, isagoo ka qeyb qaatay Dagaallada Gettysburg, Falling Waters, Manassas Gap, Bristoe Station, Mine Run
, Saldhigga Rappahannock, Beerta, Spotsylvania, Waqooyiga Anna, iyo Kaniisadda Bethesda. Waxaa loo aqoonsaday inuu yahay Major ka dib markii uu isku muujiyay isaga oo ku jira duurjoogta, Corson ayaa dib u soo celiyay bishii Juun 1864. Saldhigga Bristoe 14kii Oktoobar, Corson iyo kalkaalisada isbitaalka ayaa badbaadiyay askari si xun u dhaawacmay oo ka tagay khadadka inta lagu gudajiray rasaasta qoryaha ee Confederate. Ficilkan awgiis, waxaa la guddoonsiiyay Billada Sharafta 13kii Maajo 1899. Bishii Nofeembar 1864, wuxuu noqday sarkaal caafimaad oo ka tirsan xerada Camp Discharge, oo loo isticmaali jiray in lagu soo ururiyo askarta, Philadelphia.