Saturday, July 11, 1863
The Twentieth Massachusetts departed from Gettysburg on Sunday, July 5 in pursuit of the Army of Virginia and arrived at Two Taverns that evening. On Tuesday the Twentieth Massachusetts crossed into Maryland and arrived in Taneytown. Moving rapidly the Twentieth arrived in Frederick City on Wednesday, in Rohresrsville on Thursday, and in Tilghmanton on Friday, and formed into line with the Second Corps today near the Potomac River.1
1George A. Bruce, The Twentieth Regiment of Massachusetts Volunteer Infantry 1861 - 1865 (Cambridge, Massachusetts: The Riverside Press, 1906), 302.