United States Regiments & Batteries > Pennsylvania > Infantry


The 45th Pennsylvania Volunteer Infantry Regiment lost 13 officers and 214 enlisted men killed or mortally wounded and 252 enlisted men to disease during the Civil War. It is honored by a monument at Antietam.

1861
October 21 Organized at Camp Curtin, Harrisburg under Colonel Thomas Welsh, Lieutenant Colonel James Beaver and Major John M. Kilbourne
October 21-23 Moved to Washington, D.C. and attached to Jamison’s Brigade, Heintzelman’s Division, Army of the Potomac
November 3-11 Expedition into Lower Maryland to monitor elections
November 19-21 Moved to Baltimore, Md., then to Fortress Monroe, Va. on the steamer Pocahontas, and attached to Sherman’s South Carolina Expeditionary Corps
December 6-8 Sailed for Port Royal, S.C. The steamer Louisiana, carrying part of the 45th and the entire 76th Pennsylvania, grounded on the bank at Hilton Head, but was rescued by a gunboat. The remainder of the regiment, on the steamer Cosmopolitan, arrived without incident.
December 11 Companies A, C, D, E and I assigned to duty at Bay Point
Companies B, F, G, H and K occupy Otter Island, S.C.
December 20 Companies F and K occupy Fenwick Island
1862
March 13 Captain Ezekiel Rambo and Corporal Fessler were killed and 19 men wounded in a friendly fire incident
April Assigned to 2nd Brigade, 1st Division, Dept. of the South
April 4 – May 20 Company F at Fenwick Island
May 21 Companies B, F, G, H, I and K moved to North Edisto Island, S.C.
May 21-June 28 Operations against James Island, S.C.,
June 10 Action on James Island
June 16 Battle of Secessionville
June 28-July 1 Evacuation of James Island and movement to Hilton Head
July 1 Captain Edward Kelsey of Company K promoted to major
July 18-21 Moved to Newport News, Va. on the steamer Arago. Attached to 2nd Brigade, 1st Division, 9th Army Corps, Army of the Potomac
July 30 Major Kilborne resigned and Captain John Curtin of Company A (Governor Curtin’s half brother) was promoted to major
August 4-5 To Aquia Creek
August Operations on the Rapidan and Rappahannock Rivers
August 5-29 At Brook’s Station
September 4 Destruction of bridges at Potomac Creek and Brook’s Station by 300 men under Major Curtin.

Lt. Colonel Beaver was promoted to colonel of the 148th Pennsylvania Infantry Regiment. Major Curtin was promoted to lieutenant colonel.

September 6 Destruction of stores at Aquia Creek, then moved by water to Washington
September 9 Marched to Brookville
September 12 To Frederick
September 13 To Middletown
September Assigned to 3rd Brigade, 1st Division, 9th Army Corps, Army of the Potomac
September 14
Battle of South Mountain

The regiment was commanded by Lt. Colonel Curtin while Colonel Welsh commanded the brigade. It lost 145 casualties. Lieutenants James Cole and George Smith were killed, Lieutenant William Grove was mortally wounded, Lt. Colonel Curtin was lightly wounded in the arm but remained in command, and Captain Theodore Gregg was wounded.

September 16-17
Battle of Antietam

The regiment lost 1 killed, 36 wounded and 1 missing

From the regimental monument on Branch Avenue at Antietam:

The Regiment advanced 264 yards Northwest of this point, retiring to this position later in the day.

From the War Department tablet for Welsh’s Brigade on the Antietam battlefield:

On the morning of the 17th Welsh’s Brigade was in reserve on the eastern slope of the ridge on the left bank of the Antietam, nearly opposite the Burnside Bridge. About 2 P.M., after Sturgis’ Division had carried the bridge, the Brigade crossed and, following the road to Sharpsburg about 250 yards, formed line west of the road.

The Brigade then advanced over the high ground west of the road, gradually crossing to the east, until its right was near this point, its center in the ravine and at the stone mill, and its left in the apple orchard beyond, when the attack of A.P. Hill on the left flank of the Corps compelled it to withdraw to the banks of the Antietam, where it remained until the evening of the 18th.

September-October Duty at Pleasant Valley, Md.
October 26-29 March to Lovettsville, Va.
October 29-November 19 To Warrenton
December 12-15
Battle of Fredericksburg

The regiment was in reserve and suffered no casualties

1863
January 20-24 Burnside’s 2nd Campaign
February 1-10 At Falmouth
February 11 Moved by rail to Aquia Creek, then by steamer to Newport News
March 1 Colonel Welsh was promoted to brigadier general. Lt. Colonel Curtin was promoted to colonel, Captain Francis Hill of Company I to lieutenant colonel and Captain Edward Kelsey of Company K to major
March 19-23 Moved by steamer Mary Washington to Baltiimore, then by rail to Lexington, Ky.
April-May Duty at various points in Kentucky attached to Army of the Ohio
June 7-14 Moved to Vicksburg, Miss. Attached to 1st Brigade, 1st Division, 9th Army Corps, Army of the Tennessee
June 14-July 4 Siege of Vicksburg
July 5-10 Advance on Jackson, Miss.
July 10-17
Siege of Jackson

Captain William Chase wounded

July At Milldale
August 5-18 Moved to Covington, Ky., then to Crab Orchard and transferred to the Army of the Ohip
August 16-October 17 Burnside’s Campaign in East Tennessee
October 10
Blue Springs

The regiment lost 21 casualties, including Captain R. Chessman, who was wounded

November 4-December 23 Knoxville Campaign
November 14-15
Lenoir Station

Captain Hart with a wagon train and 16 men were captured

November 16 Campbell’s Station
November 17-December 4
Siege of Knoxville
December 5-24 Pursuit of Longstreet
1864
January 1 426 men of the regiment reenlisted. They were granted a veteran furough, but had to march via Cumberland Gap with minimal rations, many barefoot, to leave the field.
January – March Operations in East Tennessee
January 21-22 Strawberry Plains
March 21-April 6 Movement to Annapolis, Md. Attached to 1st Brigade, 2nd Division, 9th Army Corps, Army of the Potomac
May 4-June 12 Rapidan Campaign
May 5-7
Battle of the Wilderness

The regiment lost 145 casualties. Lieutenant Evan R. Goodfellow was killed, Captain John Campbell mortally wounded, and Captains William Chase and Andrew Fessler and Lieutenant Cyrus Bruner wounded

May 8-21
Battle of Spotsylvania Court House

Lieutenant John Irvin was wounded.

Corporal John Kinsey of Company B earned the Medal of Honor for siezing the regiment’s colors from the wounded color bearer and saving them from capture “with great gallantry.”

May 12 Assault on the Salient
May 21 Stannard’s Mill
May 23-26 North Anna River
May 26-28 Line of the Pamunkey
May 28-31 Totopotomoy
June 1-12
Battle of Cold Harbor

The regiment lost 163 casualties in three days of fighting out of 300 effectives. Lieutenants De Witt Hoig and George Scudder were killed, Major Kelsey was mortally wounded and Lieutenants John Gelbaugh and John Rogers were wounded.

June 1-3 Bethesda Church
June 16-18 First Assault on Petersburg

The regiment lost 3 killed and 18 wounded. Captain Chessman and Lieutenant Harvey Benner were wounded and Colonel Curtin was badly wounded in the shoulder and carried from the field.

June 16 Siege of Petersburg begins
July 18 Lieutenant James Gibbony and one other enlisted man killed on picket at Petersburg
July 30
Mine Explosion, Petersburg

The regiment fought in the crater, bringing 210 men under Captain Theodore Gregg. It lost 6 killed and 22 wounded, with 39 men missing. Captain Edgar Eyde and Lieutenants Adolph Campbell and Ephraim Jeffers were wounded and Captain Rees Richards captured

Corporal Franklin Hogan of Company A earned the Medal of Honor for capturing the colors of the 6th Virginia Infantry.

August Lt. Colonel Hill discharged on Surgeon’s Certificate
August 18-21 Weldon Railroad
September 23 Captain Theodore Gregg of Company F promoted to lieutenant colonel
September 29-

October 2

Poplar Springs Church

The brigade was surrounded, and Lt. Colonel Gregg unsuccessfully tried to cut the regiment through to Union lines. Lieutenant James Gregg was killed, Captain Andrew Fessler wounded and captured, and Lt. Colonel Gregg and Captain John Trout captured along with the balance of the regiment, some 150 men.

October 1
Peeble’s Farm

There were only 92 survivors of the regiment.

October 27-28 Battle of Boydton Plank Road, or Hatcher’s Run
November At Fort Rice
1865
February Lt. Colonel Gregg and Captain Trout return from Confederate captivity
March 25 Fort Stedman
March 31 Captain John Trout of Company C promoted to major
April 2
Assault on and fall of Petersburg

Lieutenant Levi Robb was mortally wounded. Captains Chessman, commanding the regiment, and Lafayette Lord were wounded.

April 3-9 March to Farmville. Lieutenant Colonel Gregg returned to the regiment from Confederate prison
April 20-24 Moved to Petersburg and City Point
April 26-28 To Alexandria
May 23 Grand Review
June – July Duty at Washington and Alexandria
July 17 Mustered out under Lt. Colonel Gregg