Due to the detached duty, they missed the Bristoe Campaign but returned again to their brigade for the Mine Run Campaign in November 1863. During the reorganization with the arrival of Grant, Eddy and the 37th remained in VI Corps, but were now in the 4th Brigade of the 2nd Division. They remained with that brigade through the end of the war. In May and June, Eddy and his mates were joined by men from the 7th and the 10th Massachusetts Between the Second Battle of Petersburg and the Battle of the Crater, the blacksmith and his regiment were issued new Spencer repeating rifle, on July 15, 1864, increasing their firepower. They carried these through the remainder of the Richmond-Petersburg. and Appomattox Campaigns.