104th Pennsylvania Infantry

== Regimental History and Service Record ==
Organized at Doylestown September 20 to October 16, 1861. Left State for Washington, D.C., November 6, 1861. Attached to Casey's Division to March, 1862. 1st Brigade, 3rd Division, 4th Army Corps, Army Potomac, to June. 1862. 1st Brigade, 2nd Division, 4th Army Corps, to December, 1862. Naglee's Brigade, Dept. of North Carolina, to January, 1863. 2nd Brigade, 2nd Division, 18th Army Corps, Dept. of North Carolina, to February, 1863. 2nd Brigade, 1st Division, 18th Army Corps, Dept. of the South, to April, 1863. District of Beaufort, S.C., 10th Army Corps, to July, 1863. 2nd Brigade, 1st Division, 10th Army Corps, Dept. South, July, 1863. Davis' Brigade, Folly Island, S.C., 10th Corps, to August, 1863. 5th Brigade, Morris Island, S.C., 10th Corps, to November, 1863. 2nd Brigade, Morris Island, S.C., 10th Corps, to April, 1864. District of Hilton Head, S.C., Dept. South, to June, 1864. Morris Island, Northern District, Dept. South, to July, 1864. District of Florida, Dept. South, to August, 1864. Defenses of Washington, 22nd Corps, South of the Potomac, to September, 1864. Train Guard, Army Shenandoah, Middle Military Division, to November, 1864. 1st Brigade, Defenses Bermuda Hundred, Va., Dept. Virginia and North Carolina, to April, 1865. Norfolk and Portsmouth, Va., Dept. Virginia, to August, 1865.
SERVICE.--Duty in the Defenses of Washington until March, 1862. Advance on Manassas, Va., March 10-15. 
* Moved to the Peninsula March 28. 
* March 28-September 2, 1862 - The Peninsula Campaign 
** April 5-May 4, 1862 - Siege of Yorktown, Virginia
** May 5, 1862 - Battle of Williamsburg, Virginia
** May 20-23, 1862 - Operations about Bottom's Bridge, Virginia
** May 24-27, 1862 - Reconnaissance to Seven Pines, Virginia
** May 24, 1862 - Skirmish at Savage's Station, Virginia 
** May 31-June 1, 1862 - Battle of Seven Pines, Virginia 
** June 25-July 1, 1862 - The Seven Days Battles before Richmond, Virginia
*** June 28-June 29, 1862 - Skirmishes at Bottom's Bridge, Virginia
*** June 30, 1862 - Engagement at White Oak Swamp, Virginia
*** July 1, 1862 - Engagement at Malvern Hill, Virginia
At Harrison's Landing until August 15. Moved to Yorktown August 16-23, and duty there until December 28. Gloucester Point November 16. Expedition to Matthews County December 11-15. Moved to Morehead City, N. C., December 28-January 1, 1863, thence to Port Royal Harbor, S.C., January 28-31. Moved to St. Helena Island, S.C., February 10, and duty there until April 4. Expedition against Charleston, S. C, April 4-12. Duty at Beaufort, S.C., until July. Expedition to James Island, S.C., July 9-16. Battle of Secessionville. James Island, July 16. Moved to Folly and Morris Island, S.C., July 16-18. Assault on Fort Wagner, Morris Island, July 18. Siege of Fort Wagner July 18-September 7, and operations against Fort Sumter and Charleston from Morris and Folly Islands until June, 1864. Reconnaissance to Dafuskie Island May 11, 1864. Expedition to John's Island July 2-10. Operations against Battery Pringle July 4-9. Boudren's Causeway, James Island, July 9. At Hilton Head, S. C., until July and in Florida until August. Ordered to Washington, D.C., and duty in the Defenses south of the Potomac to September. Moved to Harper's Ferry, W. Va., and duty escorting trains to Sheridan's army until November. Moved to Bermuda Hundred, Va., November 22. Siege operations against Petersburg and Richmond December, 1864. to April, 1865. Fall of Petersburg April 2. Duty there until April 20. Moved to Norfolk, Va., April 20-24, and duty there until August. Mustered out August 25, 1865.
== Regimental Roster ==
== Regiment Statistical Information ==
* Regiment lost during service, 2 Officers and 68 Enlisted men killed and mortally wounded and 115 Enlisted men by disease. Total 185
== Legacy ==
== Notes ==
== Sources == 
* (Pages 897, 898, 899, 900, 901, 902, 903, 904, 1609)
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