Ku dhammaystiro weedha soo socota: Markii la baabi'iyey ciidanka III, baytariga Clark waxaa loo wareejiyay qoryaha kaydka ee Major John A. Tompkins. Qeybtan, baytariga Clark wuxuu u adeegay dagaalladii hore ee Ololaha Dhulka. Xilligii dagaalka Cold Harbor, batteriga Clark waxaa loo wareejiyay guutada hubka dagaalka ee II Corps oo uu hogaaminayo Kornayl John C. Tidball. Intii lagu jiray weerarkii Petersburg, Clark wuxuu ku sugnaa qeybtii labaad ee ciidanka hoos yimaada Tidball ka dibna kornayl John G. Hazard. Clark wax yar baa laga dhaawacay weerarkii
Dagaalkii Labaad ee Ream's Station sanadkii 1864. Kadib wuxuu raacay ciidamadii uu ka midka ahaa ee ay diiwaan-gelintoodu dhacday oo dib ugu soo noqday Trenton, New Jersey, ka hor inta uusan ku laaban safka Petersburg. Dib ugu noqoshada Petersburg, Clark wuxuu mas'uul ka ahaa hubka qoryaha ee safka hore ee Ciidanka Labaad bishii Diseembar 1864.