Rubuta ci gaba don wannan sakin layi - Bayan sake tsarawa mai yawa a lokacin hunturu na 1863 <unk> 1864, Walker da Sojojin Potomac sun yi yaƙi a cikin Kamfen na Overland ta hanyar Mayu da Yuni 1864. Yaƙin Cold Harbor a farkon watan Yuni ya dauki nauyin da ya dace a kan rundunar II Corps kuma Walker ya ji rauni a gwiwa a lokacin yakin. A cikin Kamfen na Richmond-Petersburg da ya biyo baya, an nada Walker a matsayin mai ba da izini. Duk da haka, a ranar 25 ga Agusta, 1864, yayin da yake tafiya don neman Janar Janar John Gibbon a gaba a lokacin yakin na biyu na Ream's Station
, Walker ya kewaye shi kuma ya kama shi ta 11th Georgia Infantry. A ranar 27 ga watan Agusta, Walker ya sami damar tserewa daga wani rukunin fursunoni tare da wani fursunoni amma sojojin Arewacin Carolina na Arewacin Carolina sun kama shi bayan ya yi kokarin yin iyo a fadin kogin Appomattox kuma kusan ya nutse. Bayan an tsare shi a matsayin fursuna a Petersburg, an tura shi zuwa sanannen Fursunonin Libby a Richmond, inda aka tsare babban ɗan'uwansa. A watan Oktoba 1864, an saki Walker tare da wasu fursunoni talatin a matsayin wani ɓangare na musayar.