# 45th Pennsylvania Infantry Regiment

Pennsylvania U.S. Volunteer Infantry Regiments 1861-1865 :
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The 45th Pennsylvania Volunteer Infantry was an infantry regiment that served in the Union Army during the American Civil War.

## Service

The 45th Pennsylvania Infantry was organized beginning July 28, 1861 and mustered in October 21, 1861 at Camp Curtin in Harrisburg, Pennsylvania for a three-year enlistment under the command of Colonel Thomas Welsh.
The 45th Pennsylvania Infantry mustered out July 17, 1865.

## Affiliations, battle honors, detailed service, and casualties
### Organizational affiliation

Attached to:
* Jamison's Brigade, Heintzelman's Division, Army of the Potomac, to October 1861.
* Department of the South, to July, 1862.
* 2nd Brigade, 1st Division. IX Corps, AoP, to September, 1862.
* 1st Brigade, 1st Division. IX Corps, AoP, to April, 1862.
* 1st Brigade, 1st Division. IX Corps, Army of the Ohio (AoO), to June. 1863.
* 3rd Brigade. 1st Division, IX Corps, Army of the Tennessee, to August. 1863.
* 1st Brigade, 1st Division. IX Corps, AoO, to April, 1864.
* 2nd Brigade, 3rd Division, IX Corps, AoP, to September.
* 1st Brigade, 1st Division, IX Corps, AoP to October, 1864.
* 1st Brigade, 2nd Division, IX Corps, Army of the Potomac, to July 1865.

### List of battles

The official list of battles in which the regiment bore a part:
* Battle of Secessionville
* Battle of South Mountain
* Battle of Antietam
* Battle of Fredericksburg
* Siege of Vicksburg
* Siege of Jackson
* Knoxville Campaign
* Overland Campaign
* Battle of the Wilderness
* Battle of Spotsylvania Court House
* Battle of North Anna
* Battle of Totopotomoy Creek
* Battle of Cold Harbor
* Siege of Petersburg
* Battle of the Crater
* Battle of Globe Tavern
* Battle of Boydton Plank Road
* Battle of Fort Stedman
* Appomattox Campaign
* Third Battle of Petersburg

### Detailed service

(NOTE — Battles are Bolded, Italicized; campaigns are Italicized)

#### 1861

* Moved to Washington, D.C., October 21–23
* Expedition into lower Maryland November 3–11, 1861
* Moved to Baltimore, Md., then to Fort Monroe, Va., November 19–21
* Sailed for Port Royal, S.C., December 6–8
* Companies A, C, D, E, and I assigned to duty at Bay Point; Companies B, F, G, H, and K occupied Otter Island, S.C., December 11, and duty there until May 1862; Companies F and K occupied Fenwick Island December 20, 1861; Company F at Fenwick Island April 4 to May 20, 1862; Companies B, F, G, H, I, and K moved to North Edisto Island, S.C., May 21, 1862

#### 1862

* Operations against James Island, SC, May 21-June 28
* Action on James Island June 10.
* Battle of Secessionville June 16
* Evacuation of James Island and movement to Hilton Head June 28-July 1
* Moved to Newport News, Va., July 18–21, then to Aquia Creek August 4–5
* Operations on the Rapidan and Rappahannock Rivers until September
* At Brook's Station August 5–29
* Destruction of bridges at Potomac Creek and Brook's Station September 4
* Destruction of stores at Aquia Creek September 6
* Battle of South Mountain September 14
* Battle of Antietam September 16–17
* Duty at Pleasant Valley, Md., until October 26
* Marched to Lovettsville, Va., October 26–29; then to Warrenton October 29-November 19
* Battle of Fredericksburg December 12–15

#### 1863

* Burnside's Mud March January 20–24, 1863
* At Falmouth until February 11
* Moved to Newport News February 11, then to Lexington, Ky., March 19–23
* Duty at various points in Kentucky until June
* Moved to Vicksburg, Miss., June 7–14
* Siege of Vicksburg June 14-July 4
* Advance on Jackson, Miss., July 5–10
* Siege of Jackson July 10–17
* At Milldale until August 5
* Moved to Covington, Ky., then to Crab Orchard August 5–18
* Burnside's Campaign in eastern Tennessee August 16-October 17
* Blue Springs October 10
* Knoxville Campaign November 4-December 23
* Lenoir Station November 14–15
* Campbell's Station November 16
* Siege of Knoxville November 17-December 4
* Pursuit of Longstreet December 5–24

#### 1864

* Regiment reenlisted January 1, 1864
* Operations in eastern Tennessee until March 1864
* Strawberry Plains January 21–22
* Movement to Annapolis, Md., March 21-April 6
* Overland Campaign May 4-June 12
* Battle of the Wilderness May 5–7;
* Spotsylvania May 8–12;
* Spotsylvania Court House May 12–21
* Assault on the Salient May 12
* Stannard's Mill May 21
* North Anna River May 23–26
* Line of the Pamunkey May 26–28
* Totopotomoy May 28–31
* Cold Harbor June 1–12
* Bethesda Church June 1–3
* Before Petersburg June 16–18
* Siege of Petersburg June 16, 1864 to April 2, 1865
* Battle of the Crater, Petersburg, July 30, 1864
* Second Battle of Weldon Railroad August 18–21
* Poplar Springs Church September 29-October 2
* Peeble's Farm October 1
* Boydton Plank Road, Hatcher's Run, October 27–28
* At Fort Rice until April 1865

#### 1865

* Fort Stedman March 25, 1865
* Assault on and fall of Petersburg April 2
* Marched to Farmville April 3–9
* Moved to Petersburg and City Point April 20–24, then to Alexandria April 26–28
* Grand Review of the Armies May 23
* Duty at Washington and Alexandria until July

## Casualties

The regiment lost a total of 479 men during service; 13 officers and 214 enlisted men killed or mortally wounded, 252 enlisted men died of disease.

## Commanders

* Colonel Thomas Welsh - promoted to brigadier general March 1, 1863
* Colonel John I. Curtin
* Lieutenant Colonel Francis M. Hills - commanded during the Knoxville Campaign
* Captain Theodore Gregg - commanded during the Battle of the Crater

## Notable members

* Captain Rees G. Richards, Company G — 16th Lieutenant Governor of Ohio, 1882-1884
* Corporal Franklin Hogan, Company A — Capture of flag of 6th Virginia Infantry (C.S.A.) Second Petersburg, 30 July 1864