1st Potomac Home Brigade Infantry (U)

== Regimental History and Service Record ==
 
 
 In Brief
Organized at Frederick City, Md., August 15 to December 13, 1861. Attached to Banks' Division, Army of the Potomac, to March, 1862. Unassigned, Banks' 5th Corps, and Dept. of the Shenandoah to May, 1862. Railroad District, Middle Department, to July, 1862. Railroad District, 8th Army Corps, Middle Dept., to September, 1862. Annapolis, Md., 8th Army Corps, to March, 1863. 1st Separate Brigade, 8th Army Corps, to June, 1863. Lockwood's Brigade, 8th Army Corps, to July, 1863. 2nd Brigade, 1st Division, 12th Army Corps, Army of the Potomac, July, 1863. 2nd Brigade, Maryland Heights, Division West Virginia, to December, 1863. 2nd Brigade, 1st Division, West Virginia, to April, 1864. Reserve Division, Harper's Ferry, W. Va., to January, 1865. 3rd Brigade, 3rd Division, West Virginia, to April, 1865.
SERVICE.--Railroad guard duty until March, 1862. Advance on Winchester, Va., March 7-12. Strasburg March 27. Guarding Baltimore & Ohio Railroad until May. Concentrated at Harper's Ferry May 24, and action at Loudon Heights May 27. Defense of Harper's Ferry May 28-30. Guard Baltimore & Ohio Railroad until September. 
* September 4, 1862 - Skirmish at Monocacy Aqueduct, Maryland 
* September 5, 1862 - Skirmishes at Poolesville, Maryland
* Concentrated at Sandy Hook and march to Harper's Ferry. 
* Siege of Harper's Ferry September 12-15. 
** September 12-13, 1862 - Action at Maryland Heights, Maryland (3 companies)
Harper's Ferry September 14-15. Surrendered September 15 and paroled September 16. Sent to Annapolis, Md., and when exchanged assigned to duty on the Potomac in Southern Maryland to June, 1863. Martinsburg June 14. At point Lookout June
* Joined Lockwood's Brigade and march to Gettysburg, Pa., June 25-July 2. 
** June 25-August 1, 1863 - The Gettysburg Campaign 
*** July 1-3, 1863 - Battle of Gettysburg, Pennsylvania
* Pursuit of Lee July 5-24. 
* Guard duty on Baltimore Ohio Railroad in Maryland and Virginia until May, 1864. 
* Operations against Early's invasion of Maryland June and July. 
** Duffield Station June 29. 
** July 9, 1864 - Battle of Monocacy, Maryland
* Moved from Monocacy to Harper's Ferry, W. Va., and duty in that district until April, 1865. 
* August-December 1864 - Mustered out of federal service
* April 8, 1865 - Recruited up to a full Regiment and designation changed to 13th Maryland Infantry (U)
 
 
 1861
THE First Regiment Infantry, Potomac Home Brigade, Maryland Volunteers, was organized at Frederick City, Maryland, from August 15 to December 13, 1861, to serve three years. Companies A, B, D and I were recruited in Frederick County; Company C in Baltimore City; Companies E, F and H in Washington County; Company G in Baltimore, Carroll and Frederick Counties; Company K in Baltimore City and Frederick County.
The 1st Regiment Potomac Home Brigade Infantry was assigned to General Banks' Division, which was encamped in the vicinity of Frederick City, Maryland, during the fall and winter of 1861-62.
 
 
 1862
In the spring of 1862 the 1st Regiment Potomac Home Brigade Infantry marched, with General Banks' Division, up the Shenandoah Valley of Virginia as far as Winchester, Virginia, but were subsequently assigned to the protection of the Baltimore and Ohio Railroad in Maryland and Virginia. When General Banks' Division was driven out of the Shenandoah Valley of Virginia in May, 1862, the 1st Regiment Infantry, Potomac Home Brigade, was concentrated at Harper's Ferry, Va., to help protect that point from capture.
On the 27th day of May, 1862, a detachment of the regiment had a skirmish with the enemy whilst on a reconnoissance on Louden Heights, Virginia.
After the Federal troops again advanced up the Shenandoah Valley of Virginia, the 1st Regiment Potomac Home Brigade Infantry again resumed the duty assigned them of protecting the line of the Baltimore and Ohio Railroad.
After the defeat of General Pope's Army in Northern Virginia and the advance of General Lee's Army to the Potomac, the 1st Regiment Potomac Home Brigade Infantry gallantly opposed the passage of the Potomac river at the fords on the Potomac, near the mouth of the Monocacy.
The regiment was concentrated at Sandy Hook and marched thence to Harper's Ferry, Va., where it took part in the defense of that point and was surrendered, with the garrison, September 15, 1862.
The regiment having been paroled, marched to Annapolis, Maryland, and, when exchanged, was subsequently assigned to duty on the Potomac in Southern Maryland.
 
 
 1863
During the Gettysburg campaign, the 1st Regiment Potomac Home Brigade Infantry was assigned to General Lockwood's Brigade and the 12th Army Corps.
During the second day's fight at Gettysburg, July 2, 1863, it not only took part in the battle on the right of the line at Culp's Hill, but was speedily transferred to that part of the line where General Sickles' 3d Army Corps of the Army of the Potomac had met with such a bloody repulse, and with ringing cheers, led by General Meade in person, aided in the final repulse of General Longstreet's Corps.
Returning to the right of the line, they found their rifle pits on the 3d of July, 1863, in the hands of the enemy, from which they were driven after a severe fight. The 1st Regiment Potomac Home Brigade Infantry found themselves pitted against the 1st Maryland Infantry (Confederate) as an incident of the battle on this part of the line.
The loss of the First Regiment Potomac Home Brigade Infantry in this battle was severe.
After the battle of Gettysburg, the 1st Regiment Potomac Home Brigade Infantry marched with the Army of the Potomac to the Potomac river, where they again resumed guard duty on the line of the Baltimore and Ohio Railroad in Maryland and Virginia.
 
 
 1864
At the time of the invasion of Maryland by General Early's Confederate Army in July, 1864, the 1st Regiment Potomac Home Brigade Infantry performed active and efficient service, and a portion of the regiment took a conspicuous part in the battle of Monocacy July 9, 1864.
Upon the expiration of the terms of service of the original men, they were mustered out of service from August to December, 1864, except the veterans and recruits. 
 
 
 1865
The command was recruited up to a full regiment of infantry and the designation changed to the 13th Regiment Infantry Maryland Volunteers, April 8, 1865.
The casualties in the 1st Regiment Potomac Home Brigade Infantry were as follows, viz.: Killed in battle, three (3) commissioned officers and forty-two (42) enlisted men total, forty-five (45). Died of disease, wounds, etc., one (1) commissioned officer and eighty-five (85) enlisted men; aggregate death list, one hundred and thirty-one (131).
The 1st Regiment of Infantry Potomac Home Brigade participated in the following engagements, viz.:
* Skirmish at Louden Heights, Va., May 27, 1862
* Skirmish at Poolsvine, Md., September 5, 1862
* Skirmish at Monocacy Aqueduct, September 4, 1862
* Action at Maryland Heights, September 13, 1862
* Defense of Harper's Ferry, Va., September 14-15, 1862
* Battle of Gettysburg, July 2-3, 1863
* Skirmish at Duffield Station, Va., June 29, 1864
* Battle of Monocacy, Md,, July 9, 1864
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== Regimental Roster ==
 
 
 Field and Staff Officers
 
 
 Company A
 
 
 Company B
 
 
 Company C
 
 
 Company D
 
 
 Company E
 
 
 Company F
 
 
 Company G
 
 
 Company H
 
 
 Company I
 
 
 Company K
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== Regiment Statistical Information ==
* Regiment lost during service 3 Officers and 42 Enlisted men killed and mortally wounded and 1 Officer and 85 Enlisted men by disease. Total 131.
== Legacy ==
== Notes ==
== Sources == 
* (Pages 760, 763, 827, 1232)
* (Pages 483-540)
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