3rd Maryland Regiment Potomac Home Brigade Infantry

October 31, 1861, to May 20, 1862

Organized at Cumberland, Hagerstown and Baltimore, Md.

Assigned to duty as railroad guard on Upper Potomac in Maryland and Virginia attached to Railroad District West Virginia

January, 1862

Assigned to Lander's Division, Army of the Potomac

March

Assigned to Railroad District, Mountain Department

April 23

Action at Grass Lick, Va.

May 7

Wardensville

May 10-12

Franklin

June 29

Moorefield

July

Assigned to Railroad Brigade, 8th Army Corps, Middle Department

September 12-15

Siege of Harper's Ferry

September 15

Surrendered

September 16

Paroled and sent to Annapolis, Md., attached to 8th Army Corps

September-June

Duty at Annapolis and in the Defenses of Baltimore

June 28, 1863 - July 10, 1864

Guard Washington Branch, Baltimore & Ohio Railroad at Annapolis, Relay Station, Annapolis Junction and Monocacy

July 1863

Assigned to 3rd Separate Brigade, 8th Army Corps

October 1863

Assigned to 1st Separate Brigade, 8th Army Corps

April - May, 1864

Companies I and K organized at Ellicott's Mills and Monrovia

July, 1864

Operations against Early's Invasion of Maryland assigned to Kenly's Independent Brigade, 6th Army Corps, Army of the Shenandoah

July 7-8

Frederick City

July 9

Battle of Monocacy

July

Pursuit of Early

July 18

Snicker's Gap

August 6

Bolivar Heights

August 8

Halltown

August 9

Charlestown

August 13

Berryville

August - May

Duty in the District of Harper's Ferry, W. Va. assigned to Kenly's Brigade, Reserve Division, West Virginia

May 12

Ordered to Baltimore, Md.

October

Assigned to Reserve Division, West Virginia

April, 1865

Assigned to 1st Brigade, 1st Division, West Virginia

May 29, 1865

Mustered out