The U.S.C.T 4th Infantry Regiment was organized at Baltimore, Maryland, from July 15 to September 1, 1863, the 4th Regiment was first sent to Fort Monroe, Virginia, on October 1 before moving to Yorktown, Virginia. As part of the XVIII Corps, the unit participated in several expeditions and engagements: an expedition to Mathews County from October 4 to October 9, 1863, Wistar's Expedition against Richmond from February 6 to February 8, 1864, action at New Kent Court House on February 8, an expedition to Bottom's Bridge in aid of Brigadier General Hugh Judson Kilpatrick's cavalry from March 1 to March 4, an expedition into King and Queen County from March 9 to March 12, and an expedition into Mathews and Middlesex Counties from March 17 to March 21.
In May 1864, the 4th left Yorktown and took part in Brigadier General Benjamin F. Butler's operations on the south side of the James River and against Petersburg and Richmond, Virginia. The regiment saw action in a skirmish at Bermuda Hundred on May 4 and served the rest of Butler's campaign at Spring Hill on the Appomattox River. While there, the men of the unit built Fort Converse and defended the fort against an attack on May 20.9 From June to December 1864, the 4th Regiment participated in the Richmond-Petersburg Campaign. At Petersburg, the unit was involved in the Second Battle of Petersburg from June 15 to June 18 and the Battle of the Crater on July 30. Later, the 4th moved towards Richmond and took part in an engagement at Dutch Gap on September 7, the Battle of Chaffin's Farm from September 28 to September 30, and the Battle of Fair Oaks on October 27 and October 28. Three men of the regiment received the Medal of Honor for their actions at Chaffin's Farm: Christian Fleetwood, Alfred B. Hilton, and Charles Veale.
In December the unit was assigned to the newly formed XXV Corps and took part in the failed attack on Fort Fisher, North Carolina, from December 7 to December 27, 1864, and the successful Second Battle of Fort Fisher from January 7 to January 15, 1865, where the regiment was involved in the assault and capture of the fort. The 4th then participated in several other engagements in the area, Sugar Loaf Hill on January 19, Sugar Loaf Battery on February 11, the Battle of Wilmington at Fort Anderson from February 18 to February 20, and the capture of Wilmington and action at Northeast Ferry on February 22, 1865.
In March 1865, the 4th Regiment was reassigned to the X Corps and took part in General William Tecumseh Sherman's Carolinas Campaign. The unit saw action during the advance on Goldsboro, North Carolina, starting on March 6 and occupied Goldsboro after its capture on March 21. The regiment saw further action at Cox's Bridge on March 23 and March 24 and participated in the advance on Raleigh, North Carolina, starting on April 9 and the occupation of Raleigh after the city's fall on April 14. With the end of the war at hand, the men of the 4th witnessed the surrender of Confederate General Joseph E. Johnston and his army at Bennett Place, North Carolina, on April 26, 1865. The unit served out the rest of its term in the Department of North Carolina.
The 4th was mustered out on May 4, 1866, after about three years of existence. The regiment lost a total of 292 men during its service; three officers and 102 enlisted men were killed or mortally wounded and one officer and 186 enlisted men died of disease.
OFFICERS:ASSIGNMENTS:
Attached to 2nd Brigade, United States Forces, Yorktown, Va., 18th Corps, Dept. of Virginia and North Carolina, to April 1864. 2nd Brigade, Hincks' Colored Division, 18th Corps, to June 1864. 2nd Brigade, 3rd Division, 18th Corps, to December 1864. 2nd Brigade, 1st Division, 25th Corps, to January 1865. 2nd Brigade, 3rd Division, 25th Corps, to March 1865. 2nd Brigade, 3rd Division, 10th Corps, Dept. of North Carolina, to August 1865. Dept. of North Carolina to May 1866.
SERVICE:
Duty at Yorktown till May 1864.
Expedition from Yorktown to Matthews County October 4-9, 1863.
Wistar's Expedition against Richmond February 6-8, 1864.
New Kent Court House February 8.
Expedition to Bottom's Bridge in aid of Kilpatrick's Cavalry March 1-4.
Expedition into King and Queen County March 9-12.
Expedition into Matthews and Middlesex Counties March 17-21.
Butler's operations south of the James River and against Petersburg and Richmond May 4-June 15.
Skirmish at Bermuda Hundred May 4.
Duty at Spring Hill on the Appomattox till June. (Built Fort Converse on the Bermuda Hundred line.)
Attack on Fort Converse May 20.
Before Petersburg June 15-18.
Siege operations against Petersburg and Richmond June 16 to December 7.
Mine Explosion, Petersburg, July 30.
Dutch Gap September 7.
Battle of Chaffin's Farm, New Market Heights, September 28-30.
Battle of Fair Oaks October 27-28.
1st Expedition to Fort Fisher, N. C., December 7-27.
2nd Expedition to Fort Fisher, N. C., January 7-15.
Assault and capture of Fort Fisher, N. C., January 15.
Sugar Loaf Hill January 19.
Sugar Loaf Battery February 11.
Fort Anderson February 18-20.
Capture of Wilmington February 22.
Northeast Ferry February 22.
Campaign of the Carolinas March 1-April 26.
Advance on Goldsboro March 6-21.
Occupation of Goldsboro March 21.
Cox's Bridge March 23-24.
Advance on Raleigh April 9-18.
Occupation of Raleigh April 14.
Bennett's House April 26.
Surrender of Johnston and his army.
Duty in the Dept. of North Carolina till May 1866.
HISTORICAL NOTES: