Rubuta ci gaba don wannan sakin layi - Bayan fitowa daga zangon hunturu a farkon bazarar 1864, an sake sanya Coyne da rundunarsa zuwa Brigade na 2, Rukunin 4 na II Corps na Sojojin Amurka daga Maris zuwa Mayu sannan kuma aka sake sanya su a watan Mayu zuwa Brigade na 4, Rukunin 3 a cikin wannan rukunin. An umurce su da yin aiki tare da Lieutenant-General Ulysses S. Grant's Overland Campaign (Mayu 4 <unk> Yuni 24, 1864), sai suka yi yaƙi a cikin yaƙe-yaƙe na Wilderness (Mayu 5 <unk>7), Spotsylvania Court House (Mayu 8 <unk>21), Arewacin Anna (Mayu 23 <unk>26), Totopotomoy Creek
(Mayu 28<unk>30), da Cold Harbor (Mayu 31 <unk> Yuni 12), kuma sun shiga cikin Siege na Petersburg daga Yuni 9 har zuwa Yuni 22 lokacin da aka koma da rundunar zuwa New York don tattarawa da sake tsarawa. Ko da yake wasu daga cikin 'yan bindigar New York na 70 sun sake komawa cikin 86th New York Infantry, an ba da Coyne da girmamawa a Birnin New York a ranar 1 ga Yuli, 1864.