Tuesday, September 2, 1862
The Twentieth Massachusetts remained on picket duty under the command of General Joseph Hooker. As the Union Army retreated toward Washington, the Twentieth covered the retreat and remained in an advanced position. Although the Confederates attempted to pursue the retreat, Union artillery fire prevented an attack.1
1George A. Bruce, The Twentieth Regiment of Massachusetts Volunteer Infantry 1861 - 1865 (Cambridge, Massachusetts: The Riverside Press, 1906), 146.