Whakaotihia te rerenga e whai ake nei: I te tau 1864, i whakahau a Osborn i te 1st Brigade, 1st Division o te XXIV Corps o te Army of the James. I whara kino a Osborn i te
Ko te Pakanga o Drewry's Bluff i te Mei 14, 1864, i te wa i pakaru ai te pu o te pu ki tana kokonga matau ka noho ki tona ringa. I noho ia ki te hōhipera tae noa ki te marama o Hepetema i mua i tana tukunga ki te mahi. I te marama o Tihema, kua ora ake ia ki te whakaatu i tana mahi. Heoi, i mate ia i te mate o te kopu i whara i te toenga o tona oranga.