Almost every unit present at Gettysburg on the Union side erected some sort of monument or memorial. These regiments and batteries are the exceptions; the following Union regiments and artillery batteries were part of the Army of the Potomac during the Gettysburg Campaign but are not honored by any monument on the battlefield.

33d New York Infantry

Neill’s Brigade, Second Division, Sixth Corps

The 33d New York Infantry (the “Ontario Regiment”) was represented by only a detachment at Gettysburg. They were unofficially attached to the 49th New York Regiment (and were officially added to the 49th at a later date). The 33d detachment was commanded by Capt. Henry J. Gifford (1836-1909). They suffered no loss during the battle.

Unit History: Organized at Elmira, N. Y, and mustered in July 3, 1861, to date May 22, 1861. Moved to Washington, D. C., July 8. Attached to W. F. Smith’s Brigade, Division of the Potomac, to October, 1861. 2nd Brigade, W. F. Smith’s Division, Army of the Potomac, to March, 1862. 3rd Brigade, 2nd Division, 4th Army Corps, Army of the Potomac, to May, 1862. 3rd Brigade, 2nd Division, 6th Army Corps, to June, 1863. SERVICE.–Duty in the Defenses of Washington, D. C., until March, 1862. Advance on Manassas, Va., March 10-15, 1862. Embarked for the Peninsula, Va., March 23. Near Lee’s Mills April 5. Siege of Yorktown April 5-May 4. Lee’s Mills near Burnt Chimneys April 16. Battle of Williamsburg May 5. Storming of Fort Magruder. Mechanicsville May 23-24. Seven days before Richmond June 25-July 1. Gaines’ Mill, Garnett’s Farm, June 27. Garnett’s and Golding’s Farms June 28. Savage Station June 29. White Oak Swamp and Glendale June 30. Malvern Hill July 1. At Harrison’s Landing until August 16. Movement to Fortress Monroe, thence to Centreville August 16-28. In works at Centreville August 28-31, and cover Pope’s retreat to Fairfax Court House September 1. Maryland Campaign September 6-22. Crampton’s Pass, South Mountain, September 14. Battle of Antietam September 16-17. Duty in Maryland until October 29. Movement to Falmouth, Va., October 29-November 19. Battle of Fredericksburg, Va., December 12-15. “Mud March” January 20-24, 1863. At Falmouth until April 27. Chancellorsville Campaign April 27-May 6. Operations about Franklin’s Crossing April 29-May 2. Maryes Heights, Fredericksburg, May 3. Salem Heights May 3-4. Banks’ Ford May 4. Three years men transferred to 49th Regiment New York Infantry May 14. Mustered out June 2, 1863, expiration of term. Regiment lost during service 3 Officers and 44 Enlisted men killed and mortally wounded and 105 Enlisted men by disease. Total 152.

1st Connecticut Heavy Artillery, Battery B

Artillery Reserve.

Commanded by Capt. Albert F. Brooker; four 4.5″ guns. Was at Taneytown during the battle. After Action Report of Lieut. Cornelius Gillett (will open a pop up window).

Unit History: Organized at Washington, D.C., from 4th Conn. Infantry, January 2, 1862. Attached to Military District of Washington to April, 1862. Siege artillery, Army Potomac, to May, 1862. 3rd Brigade, 2nd Division, 5th Army Corps, Army Potomac, to July, 1862. Siege artillery, Army Potomac, to August, 1862. Artillery defenses Alexandria Military District of Washington, to February, 1863. Artillery defenses of Alexandria, 22nd Army Corps, to April, 1863. 2nd Brigade, DeRussy’s Division, defenses south of the Potomac, 22nd Army Corps, to May, 1863. 3rd Brigade, DeRussy’s Division, 22nd Corps, to December, 1863. 2nd Brigade, DeRussy’s Division, 22nd Army Corps, to March, 1864. 4th Brigade, DeRussy’s Division, 22nd Army Corps, to May, 1864. (Cos. “B” and “M” attached to Artillery Reserve, Army Potomac, October, 1862, to January, 1864.) Point of Rocks, Va., Dept., of Virginia and North Carolina to June, 1864. Siege artillery, Dept. of Virginia and North Carolina in the field, and siege artillery, Army Potomac, to May, 1865. Siege artillery, Dept. of Virginia, to July, 1865. 4th Brigade, DeRussy’s Division, 22nd Army Corps, Dept. of Washington, to August, 1865. 3rd Brigade, Dept. of Washington, to September, 1865. SERVICE.–Duty at Fort Richardson, defenses of Washington, D.C., until April, 1862. Ordered to the Peninsula, Va., in charge of siege train Army Potomac, April 2. Siege of Yorktown April 12-May 4. Battle of Hanover C. H. May 27. Operations about Hanover C. H. May 27-29. Seven days before Richmond June 25-July 1. Gaines’ Mill June 27. Malvern Hill July 1. At Harrison’s Landing until August 15. Moved to Alexandria, Va., August 16-27. Duty in the defenses of Washington, D.C., until May, 1864, as garrison at Fort Richardson. Cos. “B” and “M” detached with Army Potomac, participating in battle of Fredericksburg, Va., Dec. 12-15. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Stafford Heights June 12. Battle of Gettysburg, Pa., July 1-3. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Brandy Station November 8. Mine Run Campaign November 26-December 2. Rejoined regiment in defenses of Washington January, 1864. Regiment ordered to Bermuda Hundred, Va., May 13, 1864. Engaged in fatigue duty and as garrison for batteries and forts on the Bermuda front and lines before Petersburg during siege operations against Petersburg and Richmond, May, 1864, to April, 1865. Occupy Fort Converse, Redoubt Dutton, Batteries Spofford, Anderson, Pruyn and Perry on the Bermuda front, and Forts Rice, Morton, Sedgwick and McGilvrey, and Batteries 1, 2, 3, 4, 5, 9, 10, 11, 12, 14, 15, 17, 18, 20, Burpee, Drake and Sawyer, on the Petersburg front, and at Dutch Gap, north of the James River. Assaults on Fort Dutton June 2 and 21, 1864 (Co. “L”). Attacks on the lines May 18, 19, 20, 21, 25, 27, 30, 31, June 1, 2, 5, 9, 18, 20 and 23. Mine explosion July 30, August 25, November 17, 18 and 28, 1864. Repulse of rebel fleet at Fort Brady on James River January 23-24, 1865. Expedition to Fort Fisher, N. C., January 3-15, 1865 (Cos. “B,” “G,” “L”). Capture of Fort Fisher January 15 (Cos. “B,” “G,” “L”). Assaults on and fall of Petersburg, Va., April 2, 1865. Duty in the Dept. of Va. until July 11. Moved to Washington, D.C., and duty in the defenses of that city until September. Mustered out September 25, 1865. Regiment lost during service 2 Officers and 49 Enlisted men killed and mortally wounded and 4 Officers and 172 Enlisted men by disease. Total 227.

1st Connecticut Heavy Artillery, Battery M

Artillery Reserve, Second Volunteer Brigade.

Capt. Franklin A. Pratt, commanded. Made up of four 4.5″ Rodmans. Was guarding the trains at Westminster. After Action Report of Capt. Franklin A. Pratt (will open a pop up window).

Unit History: See above entry for Battery B, 1st Connecticut Heavy Artillery.

1st Rhode Island Light Artillery, Battery C

Sixth Corps Artillery Brigade

1st Rhode Island Battery C was recruited from Providence County. It was commanded by Capt. Richard Waterman (1839-1888). Attached to the Sixth Corps Artillery Brigade, it was made up of 6 Parrotts and 125 men. Suffered no loss. After Action Report of Capt. Richard Waterman (will open a pop up window).

Unit History: Organized at Providence and mustered in August 25, 1861. Left State for Washington, D.C., August 31. Attached to Porter’s Division, Army of the Potomac, to March, 1862. Artillery, 1st Division, 3rd Army Corps, Army of the Potomac, to May, 1862. Artillery, 1st Division, 5th Army Corps, Army Potomac, to May. 1863. 3rd Volunteer Brigade, Artillery Reserve, Army Potomac, to June, 1863. Artillery Brigade, 6th Army Corps, Army Potomac, to August, 1864, and Army Shenandoah to November, 1864. Camp Barry, 22nd Corps, Dept. Washington, to December, 1864. SERVICE.–Duty at Camp Sprague, Defenses of Washington, until October, 1861, and at Hall’s and Munson’s Hills until March, 1862. Advance on Manassas, Va., March 10-16. Moved to Alexandria, thence to Fortress Monroe, Va., March 16-23. Action at Howard’s Bridge April 4. Siege of Yorktown April 5-May 4. Battle of Williamsburg May 5. Hanover C. H. May 27. Operations about Hanover C. H. May 27-29. Seven days before Richmond June 25-July 1. Battles of Mechanicsville June 26; Gaines’ Mill June 27; Turkey Bridge and Malvern Cliff June 30; Malvern Hill July 1. At Harrison’s Landing until August 16. Movement to Fortress Monroe, thence to Centreville August 16-28. Battle of Bull Run August 30. Battle of Antietam, Md., September 16-17. Shepherdstown September 19. At Sharpsburg until October 30. Movement to Falmouth, Va., October 30-November 19. Battle of Fredericksburg, Va., December 12-15. “Mud March” January 20-24, 1863. At Falmouth, Va., until April 27. Chancellorsville Campaign April 27-May 6. Battle of Chancellorsville May 1-5. Operations at Franklin’s Crossing June 5-13. Battle of Gettysburg, Pa., July 2-4. At Warrenton, Va., until September 15. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Rappahannock Station November 7. Mine Run Campaign November 26-December 2. At Brandy Station until May, 1864. Campaign from the Rapidan to the James May-June. Battles of the Wilderness May 5-7; Spotsylvania May 8-12: Spotsylvania C. H. May 12-21; North Anna River May 23-26. Line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Before Petersburg June 16-18. Siege of Petersburg June 16-July 9. Jerusalem Plank Road June 22-23. Moved to Washington, D.C., June 9-11. Repulse of Early’s attack on Washington July 11-12. Sheridan’s Shenandoah Valley Campaign August to November. Battle of Opequan, Winchester, September 19. Fisher’s Hill September 22. Battle of Cedar Creek October 19. Duty at Winchester and Kernstown until November, and at Camp Barry, Defenses of Washington, until December. Consolidated with Battery “G,” 1st Rhode Island Light Artillery, December 23, 1864. Battery lost during service 19 Enlisted men killed and mortally wounded and 8 Enlisted men by disease. Total 27.

1st Rhode Island Light Artillery, Battery G

Sixth Corps Artillery Brigade

1st Rhode Island G was made up of 6 Ordnance Rifles and 135 men attached to the Sixth Corps Artillery Brigade. It was recruited from Providence County. The commander was Capt. George W. Adams (1834-1883), a bookseller. Suffered no loss. After Action Report of Capt. George W. Adams (will open a pop up window).

Unit History: Organized at Providence December, 1861. Left State for Washington, D.C., December 7. Attached to Sedgwick’s Division, Army of the Potomac, to March, 1862. Reserve Artillery, 2nd Army Corps, Army of the Potomac, to October, 1862. Artillery, 3rd Division, 2nd Army Corps, Army Potomac, to May, 1863. 4th Volunteer Brigade, Artillery Reserve, Army Potomac, to July, 1863. Artillery Brigade, 6th Army Corps, Army Potomac, to August, 1864, and Army of the Shenandoah, Middle Military Division, to November, 1864. Camp Barry, 22nd Army Corps, Dept. of Washington, to December, 1864. Artillery Brigade, 6th Army Corps, Army of the Potomac, to June, 1865. SERVICE.–Duty at Camp Sprague, Defenses of Washington, D.C., until January 3, 1862. Moved to Darnestown January 3 and to Poolesville, Md. Duty there until February and at Edward’s Ferry until March. At Bolivar Heights until March 26. Moved to Washington, D.C., thence to the Virginia Peninsula March 26-April 2. Siege of Yorktown April 5-May 4. Battle of Fair Oaks, Seven Pines, May 31-June 1. Seven days before Richmond June 25-July 1. Peach Orchard and Savage Station June 29. Charles City Cross Roads and Glendale June 30. Malvern Hill July 1. At Harrison’s Landing until August 16. Movement to Alexandria August 16-28, thence march to Fairfax C. H. August 28-31. Cover retreat of Pope’s army from Bull Run to Washington, D.C., August 31-September 2. Battle of Antietam, Md., September 16-17. Moved to Harper’s Ferry, W. Va., September 22, and duty there until October 22. Advance up Loudoun Valley and movement to Falmouth, Va., October 30-November 18. Battle of Fredericksburg December 12-15. “Mud March” January 20-24, 1863. At Falmouth until April. Chancellorsville Campaign April 27-May 6. Maryes Heights, Fredericksburg, May 3. Salem Heights May 3-4. Banks’ Ford May 4. Franklin’s Crossing June 5-13. Battle of Gettysburg, Pa., July 2-4. Near Fairfield July 5. Funkstown, Md., July 10-13. Bristoe Campaign October 9-22. Advance to line of the Rappahannock November 7-8. Rappahannock Station November 7. Mine Run Campaign November 26-December 2. At Brandy Station until May, 1864. Rapidan Campaign May-June. Battles of the Wilderness May 5-7; Spotsylvania May 8-12; Spotsylvania C. H. May 12-21. Assault on the Salient May 12. North Anna River May 23-26. On line of the Pamunkey May 26-28. Totopotomoy May 28-31. Cold Harbor June 1-12. Before Petersburg June 17-18. Siege of Petersburg June 16-July 9. Jerusalem Plank Road June 22-23. Moved to Washington, D.C., July 9-12. Repulse of Early’s attack on Washington July 12. Snicker’s Ferry July 17-18. Sheridan’s Shenandoah Valley Campaign August to November. Battle of Opequan, Winchester, September 19. Fisher’s Hill September 22. Mount Jackson September 23-24. Battle of Cedar Creek October 19. Duty at Winchester and Kernstown until November. Moved to Washington, D.C., and refit, thence moved to Petersburg, Va. Siege of Petersburg December, 1864, to April, 1865. Fort Fisher, Petersburg, March 25, 1865. Appomattox Campaign March 28-April 9. Assault on and fall of Petersburg April 2. Pursuit of Lee April 3-9. Sailor’s Creek April 6. High Bridge and Farmville April 7. Appomattox C. H. April 9. Surrender of Lee and his army. Mustered out June 24, 1865. Battery lost during service 2 Officers and 10 Enlisted men killed and mortally wounded and 18 Enlisted men by disease. Total 30.