Rubuta ci gaba don wannan sakin layi - Sylvester Bonnaffon Jr. mai shekaru goma sha tara ya shiga aikin soja a Philadelphia, Pennsylvania a ranar 14 ga Disamba, 1861, kuma an tattara shi a wannan ranar a matsayin soja tare da Company I na 99th Pennsylvania Volunteer Infantry. An canja shi zuwa Kamfanin G a cikin wannan rundunar a ranar 18 ga watan Disamba, sai aka inganta shi zuwa matsayi na corporal a ranar 1 ga Afrilu, 1862 da kuma matsayi na sarge wata daya daga baya (a ranar 1 ga Mayu). An ba shi izini a matsayin na biyu a ranar 1 ga watan Agustan wannan shekarar, daga baya ya shiga tare da rundunarsa a cikin wasu ayyukan da suka fi karfi na yakin basasar Amurka a matsayin wani ɓangare na rundunar sojojin Potomac, ciki har da yakin Bull Run na biyu na 1862 (Agusta 28<unk>30) da kuma yakin Chantilly.
(Satumba 1) da Fredericksburg (Disamba 11<unk>15); Yaƙin 1863 na Chancellorsville (Afrilu 30<unk> Mayu 6), yaƙe-yaƙe na Gettysburg (Yuli 1<unk>3) da Wapping Heights (Yuli 23), Bristoe Campaign da Yaƙin Auburn na Farko (Oktoba 13) da Yaƙin Na Biyu na Rappahannock Station (Nuwamba 7), da Yaƙin Mine Run (Nuwamba 27<unk>Disamba 2); da kuma yaƙe-yaƙe na 1864 na Wilderness (Mayu 5<unk>7), Kotun Kotun Spottsylvania (Mayu 8<unk>21), Anna North (Mayu 23<unk>26), da Cold Harbor (Mayu 31<unk> Yuni 12). Ya shiga tare da rundunarsa a cikin Siege na Petersburg, gami da Yaƙin Farko na Farko da na Biyu (Yuli 27<unk>29, 1864 da Agusta 14<unk>20), sannan aka sake inganta shi a matsayi tare da kwamiti zuwa laftanan na farko a ranar 27 ga Satumba.