Wednesday, November 19, 1862
Captains Oliver Wendell Holmes Jr. and Henry Abbott rejoined the regiment today. Both men had been absent from the regiment since the Battle of Antietam. Holmes was wounded at Antietam and had fully recovered from his injuries. Abbott had taken ill shortly before Antietam and had been on sick leave since September 14. Doctor Nathan Hayward, who had been taken prisoner at Antietam, was rapidly exchanged after his capture and rejoined the regiment on November 12.1
1George A. Bruce, The Twentieth Regiment of Massachusetts Volunteer Infantry 1861 - 1865 (Cambridge, Massachusetts: The Riverside Press, 1906), 181. Nathan Hayward, "Letters," Association of Officers of the Twentieth Massachusetts Regiment, Reports, Letters and Papers Appertaining to Twentieth Massachusetts Volunteer Infantry, vol. 1, p. 397-8, Twentieth Massachusetts Special Collection, Boston Public Library, Boston, Massachusetts.