1846- 1864 19thcentury 30th(1864-1865) 57th(1864-1865) africanamerican africanamericansoldiers africanamericantroops americancivilwar(1861-1865) armedforces battleof battleof(virginia:1864) biography bowley campaigns coldharbor collectivememory history militarycampaigns militarylife overlandcampaign overlandcampaign(virginia:1864) participation racerelations regimentalhistories siegeofpetersburg(virginia:1864-1865) socialaspects soldiers unitedstates