Organization of Union forces at the Battle of Fredericksburg, VA, December 11-15, 1862
THIRD DIVISION. Brig. Gen. ANDREW A. HUMPHREYS.
First Brigade, Brig. Gen. ERASTUS B. TYLER.
91st Pennsylvania, Col.
Edgar M. Gregory.
126th Pennsylvania; Col. James G. Elder. Lieut Col. David W. Rowe.
129th Pennsylvania, Col. Jacob G. Frick.
134th Pennsylvania, Lieut. Col. Edward O'Brien.
Col. PETER H. ALLABACH.
123d Pennsylvania, Col. John B. Clark.
131st Pennsylvania, Lieut. Col. William B. Shaut.
133d Pennsylvania, Col. Franklin B. Speakman.
155th Pennsylvania, Col. Edward J. Allen.
1st New York Light, Battery C, Lieut. William H. Phillips.
1st United States, Batteries E and G, Capt. Alanson M. Randol
[footnote:] Chief of artillery, Third Division. [end of footnote]
[source: Official Records series 1 volume 21 page 56]