155th Pennsylvania Volunteer Infantry Regiment (Zouaves) of Colonel (Brevet Brigadier General) Edgar M. Gregory's Second Brigade. Colonel (Brevet Brigadier General) Alfred L. Pearson led the Pennsylvanians to the center and toward the sawdust pile that the Confederates were using for cover. Pearson grabbed the regimental colors and charged toward the sawdust pile with his men following and passing through the ranks of the exhausted First Brigade. Thirty-two years later, Pearson was awarded the Medal of Honor for his actions at Lewis's Farm. When they saw these Union reinforcements, the Confederates retreated to their main entrenchments along White Oak Road, abandoning control of the Boydton Plank Road and leaving behind badly wounded men and some others who surrendered. Chamberlain then positioned his men along with the artillery battery on either side and in front of the Lewis farm buildings. Number engaged; casualties Chamberlain wrote that he had fewer than 1,700 officers and men in his brigade and that his reinforcements numbered about 1,000. He wrote that the Confederates had 6,277 effective officers and men in Johnson's Division according to their morning report. He stated that he lost about a quarter of his men while the Confederate total loss was "slight in numbers," although in a paragraph after this statement he said that he saw that evening 150 dead and severely wounded Confederates lying around the breastworks and noted that almost 200 prisoners had been taken by his brigade. Modern casualty estimates are 381 for the Union force and 371 for the Confederates. Aftermath Union positions Warren was able to take a position near the junction of the Quaker Road and the Boydton Plank Road. Griffin's division and Brigadier General Samuel Crawford's division taking up positions along the Boydton Plank Road, the Union movements on March 29 and Chamberlain's success in taking the Lewis Farm position enabled the Union Army to cut this important communication and supply road and to set up to attack the White Oak Road Line. Having to deal with muddy roads over a longer route, Sheridan's cavalry divisions reached Dinwiddie Court House at about 5:00 p.m. on March 29, 1865. Sheridan put troops of Devin's and Crook's divisions into position to guard the Vaughan Road, Flat Foot Road, Boydton Plank Road and Adams Road. Grant's change in orders Encouraged by the Confederate failure to press their attack at Lewis's Farm and their withdrawal to their White Oak Road