The 10th New York Cavalry Regiment ("Porter Guard") was a cavalry regiment that served in the Union Army during the American Civil War.
The 10th New York Cavalry was organized in Elmira, New York beginning in August 1861 and mustered in September 27, 1861, under the command of Major Mathew Henry Avery.
The regiment was attached to Bayard's Cavalry Brigade, Army of Virginia, AugustâÂÂSeptember 1862. Bayard's Brigade, Cavalry Division, Army of the Potomac, to January 1863. 1st Brigade, 3rd Division, Cavalry Corps, Army of the Potomac, to June 1863. 2nd Brigade, 2nd Division, Cavalry Corps, June 1863. 3rd Brigade, 2nd Division, Cavalry Corps, to August 1863. 2nd Brigade, 2nd Division, Cavalry Corps, to May 1864. 1st Brigade, 2nd Division, Cavalry Corps, to June 1865.
The 10th New York Cavalry ceased to exist on June 17, 1865, when it was consolidated with the 24th New York Cavalry to form the 1st Regiment New York Provisional Cavalry.
Moved to Gettysburg, Pennsylvania, December 24, and duty there until March 1862. Duty at Havre de Grace and Baltimore, Maryland, Middle Department and in the defenses of Washington, D.C., until August 1862. Sulphur Springs, Virginia, August 27, 1862. Near Frying Pan August 27. Reconnaissance to Dranesville, Herndon Station, and Frying Pan August 31. Near Centreville September 3. Reconnaissance to Leesburg October 16âÂÂ17. Aldie and Mountsville October 31. Rappahannock Station November 1. New Baltimore November 4. Rappahannock Station November 7, 8, and 9. United States Ford November 16 (Company H). Battle of Fredericksburg December 12âÂÂ15. Occoquan, Dumfries, December 19. "Mud March" January 20âÂÂ24, 1863. Hartwood Church February 25. Rappahannock Railroad Bridge April 14. Stoneman's Raid toward Richmond April 27-May 8. Kelly's Ford April 30. Rapidan Station May 1. Louisa Court House May 2, South Anna Bridge May 3. Ashland Church May 4. Thompson's Cross Roads May 4. Brandy Station and Beverly Ford June 9. Aldie June 17. Middleburg June 18, 19 and 20. Upperville June 21. Aldie June 22. Gettysburg July 1âÂÂ3. Fairfield, Pa., July 5. Hagerstown, Md., July 11. Boonsboro July 11âÂÂ12. Near Harpers Ferry July 14. Shephardstown July 14 and 16. Halltown July 15. Near Amissville August 4. Little Washington August 5. Advance from the Rappahannock to the Rapidan September 13âÂÂ17. Culpeper Court House September 13. Bristoe Campaign October 9âÂÂ22. Near Warrenton October 11. Warrenton or White Sulphur Springs October 12âÂÂ13. Auburn and St. Stephen's Church October 14. Catlett's Station October 15âÂÂ16. Rappahannock Station October 24. Philomont November 1. Advance to line of the Rappahannock November 7âÂÂ8. Mine Run Campaign November 26-December 2. New Hope Church November 27. Parker's Store November 29. Expedition to Luray December 21âÂÂ23. Rapidan Campaign MayâÂÂJune 1864. Near Chancellorsville May 4. Todd's Tavern May 5âÂÂ6. Wilderness May 6âÂÂ7. Todd's Tavern May 7âÂÂ8. Spotsylvania May 8. Sheridan's Raid to the James River May 9âÂÂ24. North Anna River May 9âÂÂ10. Ground Squirrel Church and Yellow Tavern May 11. Glen Allen May 11. Fortifications of Richmond May 12. Jones Bridge May 17. Haxall's Landing May 18. On line of the Pamunkey May 26âÂÂ28. Totopotomoy May 28âÂÂ31. Hanovertown and Haw's Shop May 28. Old Church Tavern May 30. Cold Harbor May 31-June 1. Barker's and Gaines Mills June 2. Bottom's Bridge June 3. Sheridan's Trevillian Raid June 7âÂÂ24. Trevillian Station June 11âÂÂ12. Malvern Hill June 16. Kings and Queens Court House June 18. White House or St. Peter's Church and Black Creek or Tunstall Station June 21. Samaria Church June 24. Before Petersburg June 26, 1864, to April 2, 1865. Ream's Station June 30, 1864. Light House Point July 1. Gaines Hill July 2. Prince George Court House July 10 and 16. Lee's Mills July 12. Deep Bottom July 27âÂÂ28. Malvern Hill July 28. Lee's Mills July 30. Demonstration north of the James August 13âÂÂ20. Gravel Hill August 14. Strawberry Plains August 14âÂÂ18. Weldon Railroad August 19âÂÂ21. Dinwiddie Road, near Ream's Station, August 23. Ream's Station August 25. Arthur's Swamp August 29âÂÂ30. Yellow Tavern September 2. Stony Creek Station September 16. Belcher's Mills September 17. Poplar Springs Church, Peeble's Farm, September 29-October 2. Vaughan Road September 30-October 1. Duncan Road October 1. Boydton Plank Road, Hatcher's Run, October 27âÂÂ28. Near Prince George Court House November 2. Reconnaissance to Stony Creek November 7. Blackwater Creek November 18. Stony Creek December 1. Hicksford Raid December 6âÂÂ12. Bellefield December 9âÂÂ10. Jarrett's Station December 10. Dabney's Mills, Hatcher's Run, February 5âÂÂ7, 1865. Appomattox Campaign March 28- April 9. Dinwiddie Court House March 30âÂÂ31. Five Forks April 1. Fall of Petersburg April 2. Payne's Cross Roads and Amelia Springs April 5. Deatonville Road and Sailor's Creek April 6. Farmville April 7. Appomattox Station April 8. Appomattox Court House April 9. Surrender of Lee and his army. Expedition to Danville April 23âÂÂ29. Moved to Washington, D.C. May. Grand Review of the Armies May 23.
The regiment lost a total of 251 men during service; 9 officers and 93 enlisted men killed or mortally wounded, 1 officer and 148 enlisted men died of disease.