Rubuta ci gaba ga wannan sakin layi - A ranar 1 ga Yuli, 1863, an ba Walker mukamin brigadier general kuma bayan yakin Gettysburg an sanya shi ga Major General Henry Heth na III Corps na Sojojin Arewacin Virginia, da farko ya umurci tsohon brigade na Heth, sannan Brigadier Janar James J. Archer's brigade kuma, bayan mummunan rauni na Archer. Walker ya yi aiki a matsayin kwamandan brigade a karkashin Heth har sai ya rasa ƙafafunsa na hagu a yakin Spotsylvania Court House a ranar 10 ga Mayu, 1864. Ya shiga cikin yakin Bristoe Station a ranar 14 ga Oktoba, 1863, a yakin Mine Run
da kuma, bayan da yake aiki a cikin Shenandoah Valley a lokacin hunturu na 1864 <unk> 1864, a yakin da Wilderness kafin ya rauni a Spotsylvania Kotun House.