Battle of Monocacy
Union Order of Battle
VII Corps (detachment)
Maj. Gen. Lewis Wallace
1st Brigade
Brig. Gen. Erastus B. Tyler
1st Maryland Potomac Home Brigade (5 Companies)
Capt. Charles J. Brown
3rd Maryland Potomac Home Brigade
Col. Charles Gilpin
11th Maryland Infantry
Col. William T. Landstreet
144th Ohio Infantry (3 Companies)
Col. Samuel H. Hunt
149th Ohio Infantry (7 Companies)
Col. Allison L. Brown
Baltimore Artillery (6 guns)
Capt. Frederick W. Alexander
Howitzer, B&O Railroad Blockhouse
Capt. William H. Wiegel
Cavalry
Lieut. Col. David R. Clendenin
8th Illinois Cavalry
Lieut. Col. David R. Clendenin
159th Ohio Infantry (detachment, Mounted)
Capt. Edward H. Leib
Detachment Mixed Cavalry
Maj. Charles H. Wells
Loudoun Virginia Rangers
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3rd Division
Brig. Gen. James B. Ricketts
1st Brigade
Col. William S. Truex (w)
Col. William Emerson
14th New Jersey Infantry
Lieut. Col.. Caldwell K. Hall (w)
106th New York Infantry
Capt. Edward M. Paine
151st New York Infantry
Col. William Emerson
87th Pennsylvania Infantry
Lieut. Col. James Alonzo Stahle
10th Vermont Infantry
Col. William Wirt Henry (w)
2nd Brigade
Col. Matthew R. McClennan
9th New York Heavy Artillery
Col. William H. Seward, Jr. (w)
110th Ohio Infantry
Lieut. Col. Otto H. Brinkley
122nd Ohio Infantry (detachment)
Lieut. Col. Charles J. Gibson
126th Ohio Infantry
Lieut. Col. Aaron W. Ebright
138th Pennsylvania Infantry
Maj. Lewis A. May