Dee ihe na-esote paragraf a - Gibbon laghachiri n'ọchịchị nke Ngalaba nke Abụọ n'oge Ọchịagha Grant Overland Campaign na Mee na June 1864, na-ahụ ihe na-eme na ọgụ nke Wilderness, Spotsylvania Court House, na Cold Harbor. Na June 7, 1864, e buliri ya n'ọkwa onye isi ndị ọrụ afọ ofufo. N'oge nnọchibido nke Petersburg (June 1864 ruo April 1865), Gibbon nwere nkụda mmụọ mgbe ndị agha ya jụrụ ịlụ ọgụ na Ream's Station
n'ọnwa Ọgọst 1864. O duziri ndị agha nke XVIII nwa oge tupu ọ laa ezumike ọrịa, mana ọrụ ya bara oke uru, ọ laghachiri iduzi ndị agha nke XXIV e hiwere ọhụrụ na ndị agha nke James. Ndị agha ya nyere aka nweta ihe ịga nke ọma na Agha nke Atọ nke Petersburg n'April 1865, na-ejide Fort Gregg, akụkụ nke nchebe Confederate. N'oge Appomattox Campaign, o nyere aka igbochi ụzọ mgbapụ ndị Confederate na Agha nke Appomattox Courthouse, nke mere ka Gen. Lee nyefee onwe ya. Ọ bụ otu n'ime ndị kọmishọna atọ maka ndị Confederate.