Rubuta ci gaba don wannan sakin layi - Bayan da aka tura Massachusetts na 21 zuwa Arewacin Virginia a watan Yulin 1862, kungiyar ta zama wani ɓangare na Sojojin Potomac kuma sun shiga cikin manyan batutuwan da suka shafi yakin da suka hada da Bull Run na biyu, Antietam, da Fredericksburg. Rundunar ta sha wahala mafi girma a lokacin yakin Chantilly.
a ranar 1 ga Satumba, 1862. A cikin rikice-rikice na yakin, ya yi yaƙi a cikin gandun daji mai zurfi a lokacin hadari, Clark ya rabu da rundunarsa kuma ya yi yawo a cikin yankunan karkara na Virginia na tsawon kwanaki hudu kafin ya sake samun sojojin. Duk da yake ya ɓace, an rubuta shi ba daidai ba a matsayin wanda aka kashe a cikin aikin kuma jaridar Amherst ta buga labarin mutuwarsa a ƙarƙashin taken, "Wani Jarumi ya tafi".