Dee ihe na-aga n'ihu maka paragraf a - Na July 1, 1863, Walker e buliri ya n'ọkwa brigadier general na mgbe Gettysburg mkpọsa e kenyere Major General Henry Heth nke nkewa nke III Corps nke Army nke Northern Virginia, na mbụ na-achịkwa Heth mbụ brigade, mgbe ahụ Brigadier General James J. Archer si brigade dị ka nke ọma, mgbe Archer si merụọ ahụ nke ukwuu. Walker jere ozi dị ka onye ọchịagha nke ndị agha n'okpuru Heth ruo mgbe ọ tụfuru ụkwụ aka ekpe ya n'agha nke Spotsylvania Court House na Mee 10, 1864. O sonyere na agha nke Bristoe Station na Ọktoba 14, 1863, na agha nke Mine Run
na, mgbe o jere ozi na ndagwurugwu Shenandoah n'oge oyi nke 1864<unk>1864, na Agha nke Ọzara tupu mmerụ ahụ ya na Spotsylvania Court House.