Kammala jumla mai zuwa: Bayan haka ya yi aiki tare da rundunarsa a lokacin Siege na Petersburg daga Yuli 1864 zuwa Afrilu 1865, Rohm ya jagoranci rundunar sojan doki ta 16 ta Pennsylvania zuwa matsayi na fada a lokacin yakin farko da na biyu na Deep Bottom (Yuli 27<unk>29 da Agusta 14<unk>20). A ranar 25 ga Agusta, 1864, sai ya yi aikin jaruntaka wanda daga baya za a ba shi lambar yabo ta Amurka. Yayin da yake aiki a matsayin babban mai horar da 'yan bindiga na 16 na Pennsylvania a lokacin yakin basasa na Amurka.
Yaƙin na biyu na Ream's Station, Virginia a ranar 25 ga Agusta, 1864, ya "zauna a baya don taimakawa wani jami'in da aka ji rauni, (Colonel James Addams Beaver na 148th Pennsylvania Infantry), wanda ke cikin babban haɗari, ya sami taimako, kuma ya cire jami'in zuwa wani wuri mai aminci" yayin da rundunarsa ta koma baya a karkashin mummunar wuta. Lokacin da aka yi hira da shi daga baya a rayuwa game da ayyukansa a wannan rana, Rohm ya tuna: