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American Civil War Regiments Record 

Regiment:
100th Infantry Regiment PA
Date Mustered:
24 July 1864
Regiment Type:
Infantry
Enlisted Died of Disease or Accident:
16
Officers Died of Disease or Accident:
208
Enlisted Killed or Mortally Wounded:
2
Regimental Soldiers and History:
List of Soldiers

Regimental History
PENNSYLVANIA
100TH INFANTRY
(Three Years)

One Hundredth Infantry.-Cols., Daniel Leasure, N. J.
Maxwell; Lieut.-Cols., James Armstrong, David A. Leckey,
Matthew M. Dawson, Joseph H. Pentecost, N. T. Maxwell, Charles
Wilson; Majs., David A: Leckey, Matthew M. Dawson, James
Armstrong, James H. Cline, T. J. Hamilton, David Critchlow, N.
J. Maxwell, James W. Bard. The 100th, known as the Round Head
regiment, was recruited in the southwestern part of the state
in Aug., 1861, and ordered to Washington on Sept. 2, where its
organization was completed add it was mustered into the U. S.
service for a three years, term. Twelve companies were
recruited but one was transferred to the 105th infantry. It
was next ordered to Fortress Monroe, where it embarked on what
proved to be an expedition to Port Royal. Here the fleet
arrived Nov. 7, and captured Forts Walker and Beauregard.
Beaufort was next occupied and the regiment remained in this
vicinity for several months, the men suffering very much from
sickness. The 100th, participated in the operations against
Charleston in June, 1862, and lost very heavily in the
engagement of June 16, near Secessionville. Returning to
Hilton Head and Beaufort in July, it was ordered to Virginia,
later being sent to Fredericksburg and attached to the 9th
corps of the Army of Northern Virginia. After various marches
during the month of August, the regiment met the enemy on the
Bull Run battlefield, where it saw hard service. After
engaging all day and losing heavily, a final charge was
ordered, from which only 198 out of 450 returned unhurt. It
was active at Chantilly and South mountain, but was held in
reserve at Antietam, owing to its crippled condition. It was
engaged at Fredericksburg and after the battle performed
important duty in covering the withdrawal of the troops, being
selected as "The most reliable skirmish regiment in the
brigade." In March, 1863, it was transferred to the
Department of the Ohio and sent to Lexington, Ky., from which
place it was ordered in June to the support of Gen. Grant at
Vicksburg. It participated in the fighting at Jackson, Miss.,
after the fall of Vicksburg, and lost many men from sickness
as well as from the enemy's fire. On its return north it was
ordered to East Tennessee though many of the men were not fit
for active service. It participated in an engagement at Blue
Springs and in the hardships of the siege of Knoxville, in
spite of which almost the entire regiment reenlisted on Jan.
1, 1864. At Annapolis, the rendezvous of the 9th corps, the
100th reported in March and became a part of the 2nd brigade,
1st division, attached to the Army of the Potomac. The 9th
corps was closely engaged at the Wilderness, Spottsylvania,
the North Anna river and Cold Harbor. Moving to Petersburg,
the 100th, was repeatedly in action, notably at the explosion
of the mine, the raid on the Weldon railroad, Poplar Spring
Church the Hatcher's run movements, and in the final assault
on Petersburg, April 2, 1865. The regiment was mustered out
at Washington on July 24, 1865.

Source: The Union Army, vol. 1

Battles Fought

Fought at Campbell Station, TN.
Fought at Knoxville, TN.
Fought at Mississippi.
Fought at Petersburg, VA.
Fought at Weldon Railroad.
Fought on 07 December 1861.
Fought on 01 January 1862.
Fought on 02 June 1862.
Fought on 03 June 1862 at James Island, SC.
Fought on 06 June 1862 at James Island, SC.
Fought on 09 June 1862 at James Island, SC.
Fought on 16 June 1862 at James Island, SC.
Fought on 30 June 1862.
Fought on 29 July 1862.
Fought on 20 August 1862.
Fought on 24 August 1862 at Bull Run, VA.
Fought on 28 August 1862 at 2nd Bull Run, VA.
Fought on 29 August 1862 at 2nd Bull Run, VA.
Fought on 30 August 1862 at 2nd Bull Run, VA.
Fought on 01 September 1862 at Chantilly, VA.
Fought on 10 September 1862 at South Carolina.
Fought on 14 September 1862 at South Mountain, MD.
Fought on 17 September 1862 at Antietam, MD.
Fought on 12 July 1863 at Jackson, MS.
Fought on 15 July 1863 at Jackson, MS.
Fought on 20 September 1863.
Fought on 14 November 1863 at Knoxville, TN.
Fought on 16 November 1863 at Campbell Station, TN.
Fought on 18 November 1863.
Fought on 29 November 1863 at Fort Saunders, TN.
Fought on 29 November 1863 at Knoxville, TN.
Fought on 03 December 1863.
Fought on 27 February 1864.
Fought on 03 May 1864 at Wilderness, VA.
Fought on 05 May 1864 at Wilderness, VA.
Fought on 06 May 1864 at Wilderness, VA.
Fought on 09 May 1864 at Wilderness, VA.
Fought on 12 May 1864 at Spotsylvania Court House, VA.
Fought on 13 May 1864 at Spotsylvania Court House, VA.
Fought on 18 May 1864 at Spotsylvania Court House, VA.
Fought on 24 May 1864 at North Ann River, VA.
Fought on 24 May 1864 at North Anna River,VA.
Fought on 25 May 1864 at North Anna River, VA.
Fought on 27 May 1864 at North Anna River, VA.
Fought on 28 May 1864 at North Anna River, VA.
Fought on 01 June 1864 at Cold Harbor, VA.
Fought on 02 June 1864 at Cold Harbor, VA.
Fought on 03 June 1864 at Cold Harbor, VA.
Fought on 14 June 1864 at Petersburg, VA.
Fought on 16 June 1864 at Petersburg, VA.
Fought on 17 June 1864 at Petersburg, VA.
Fought on 22 June 1864 at Bethesda Church, VA.
Fought on 22 June 1864 at Petersburg, VA.
Fought on 28 June 1864 at Petersburg, VA.
Fought on 30 June 1864 at Petersburg, VA.
Fought on 01 July 1864 at Petersburg, VA.
Fought on 02 July 1864 at Petersburg, VA.
Fought on 06 July 1864 at Petersburg, VA.
Fought on 09 July 1864 at Petersburg, VA.
Fought on 16 July 1864.
Fought on 20 July 1864 at Petersburg, VA.
Fought on 28 July 1864 at Petersburg, VA.
Fought on 29 July 1864 at Petersburg, VA.
Fought on 30 July 1864 at Petersburg, VA.
Fought on 03 August 1864.
Fought on 14 August 1864 at Weldon Railroad, VA.
Fought on 19 August 1864 at Weldon Railroad, VA.
Fought on 21 August 1864 at Weldon Railroad, VA.
Fought on 16 September 1864 at Petersburg, VA.
Fought on 30 September 1864 at Poplar Springs Church, VA.
Fought on 30 September 1864 at Weldon Railroad, VA.
Fought on 02 October 1864 at Poplar Grove Church, VA.
Fought on 02 October 1864 at Poplar Springs Church, VA.
Fought on 19 October 1864 at Cedar Creek, VA.
Fought on 27 October 1864 at Boydton Plank Road, VA.
Fought on 06 December 1864 at Petersburg, VA.
Fought on 13 December 1864 at Petersburg, VA.
Fought on 25 December 1864 at Petersburg, VA.
Fought on 01 January 1865 at Petersburg, VA.
Fought on 05 January 1865.
Fought on 05 February 1865 at Petersburg, VA.
Fought on 14 February 1865 at Petersburg, VA.
Fought on 01 March 1865.
Fought on 04 March 1865.
Fought on 06 March 1865 at Petersburg, VA.
Fought on 07 March 1865.
Fought on 09 March 1865 at Petersburg, VA.
Fought on 15 March 1865 at Petersburg, VA.
Fought on 25 March 1865 at Fort Haskel, VA.
Fought on 25 March 1865 at Fort Stedman, VA.
Fought on 27 March 1865 at Petersburg, VA.
Fought on 02 April 1865 at Petersburg, VA.
Fought on 03 April 1865 at Petersburg, VA.

UNION PENNSYLVANIA VOLUNTEERS


100th Regiment, Pennsylvania Infantry

 

Organized at Pittsburg August 31, 1861. Left State for Washington, D. C., September 2, and duty there till October 9. Moved to Annapolis, Md., October 9. Attached to Stevens' 2nd Brigade, Sherman's South Carolina Expedition, to April, 1862. 2nd Brigade, 2nd Division, Dept. of the South, to July, 1862. 2nd Brigade, 1st Division, 9th Army Corps, Army Potomac, to September, 1862. 3rd Brigade, 1st Division, 9th Army Corps, to April, 1863. 3rd Brigade, 1st Division, 9th Army Corps, Dept. Ohio, to June, 1863. Army of the Tennessee, to August, 1863, and Army Ohio, to March, 1864. 2nd Brigade, 1st Division, 9th Army Corps, Army Potomac, to June, 1864. 1st Brigade, 1st Division, 9th Army Corps, to September, 1864. 3rd Brigade, 1st Division, 9th Army Corps, to July, 1865.

SERVICE.-Sherman's Expedition to Port Royal Harbor, S. C., October 21-November 7, 1861. Capture of Forts Walker and Beauregard, Port Royal Harbor, November 7. Occupation of Beaufort, S. C., December 8, and duty there till June, 1862. Port Royal Ferry, Coosa River, January 1. Operations on James Island, S. C., June 1-28. Legaire's Point, James Island, June 3. Skirmishes on James Island June 3-4. Battle of Secessionville, James Island, June 16. Evacuation of James Island and movement to Hilton Head, S. C., June 28-July 7. Moved to Newport News, Va., July 12-17, thence to Fredericksburg August 4-6. Operations in support of Pope August 6-16. Pope's Campaign in Northern Virginia August 16-September 2. Battles of Groveton August 29; Bull Run August 30; Chantilly September 1. Maryland Campaign September 6-24. Battles of South Mountain September 14 and Antietam September 16-17. March up the Potomac to Leesburg, thence to Falmouth October 11-November 18. Battle of Fredericksburg December 12-15. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. Moved to Newport News, Va., February 13, thence to Covington, Ky., March 20-28. Duty in District of Kentucky. At Paris, Nicholasville, Lancaster, Stanford and Somerset till June. Movement through Kentucky to Cairo, Ill., June 4-10, thence to Vicksburg, Miss., June 14-17. Siege of Vicksburg June 17-July 4. Advance on Jackson, Miss., July 5-10. Siege of Jackson July 10-17. Duty at Milldale till August 6. Moved to Covington, Ky., thence to Crab Orchard, Ky., August 6-18. March to Knoxville, Tenn., September 10-26, and duty there till October 3. Action at Blue Springs October 10. Knoxville Campaign November 4-December 23. Campbell Station November 16. Siege of Knoxville November 17-December 4. Repulse of Longstreet's assault on Fort Saunders November 29. Pursuit of Lengstreet December 5-24. At Blaln's Cross Roads till January, 1864. Veterans marched over Cumberland Mountains to Nicholasville, Ky., January, and on furlough till March. Ordered to Annapolis, Md., and duty there till April. Rapidan Campaign May 4-June 12. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Ny River May 10; Spottsylvania C. H. May 12-21. Assault on the Salient May 12. North Anna River May 12-21. Ox Ford May 24. 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. Mine Explosion, Petersburg, July 30, 1864. Weldon Railroad August 18-21. Poplar Springs Church September 29-October 2. Reconnoissance on Vaughan and Squirrel Level Road November 8. Boydton Plank Road, Hatcher's Run, October 27-28. Fort Stedman March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Occupation of Petersburg April 3. Pursuit of Lee April 3-8. Moved to Washington, D. C., April 21-28, and duty there till July. Grand Review May 23. Mustered out July 24, 1865.

Regiment lost during service 16 Officers and 208 Enlisted men killed and mortally wounded and 2 Officers and 183 Enlisted men by disease. Total 409.

 

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