Whakaotihia te rerenga e whai ake nei: I te Pipiri 1862, ka uru a Jewett ki te Ope Taua o te Uniana ki te whawhai i te Pakanga Tangata, a ka whakawhiwhia ia hei tuarua tuarua i te 9th Vermont Infantry. I te 3 o Akuhata, i hopukina ia, a, i noho ia hei herehere o te Confederacy mo nga ra 25. I whakatairangahia a Jewett ki te rangatira tuatahi i te marama o Mei 1863. I a ia e mahi ana, i uru ia ki nga pakanga o Harper's Ferry (13 me te 15 o Hepetema 1862), Newport Barracks (2 o Hui-tanguru 1864), Chaffin's Farm (29 o Hepetema 1864), me
Ko Fair Oaks (Oketopa 27, 1864). I whakarerea e ia i te marama o Noema 1864, ka hoki ki Vermont.