The following are records of the actions taken by the 126th Infantry of the State of New York during the Civil War, as quoted from the refer­enced sources. [Emphasis added for notable battles.]

Source:  p. 1454 of A Compendium of the War of the Rebellion by Frederick H. Dyer, published 1908, The Dyer Publishing Company, Des Moines, Iowa.

Organized at Geneva, N. Y., and mustered in August 22, 1862. Left State for Baltimore, Md., thence moved to Martinsburg, Va., September 2, 1862. Retreat to Harper's Ferry, W. Va., September 11-12, 1862. Attached to Miles' Command, Harper's Ferry, W. Va., September, 1862. Camp Douglas, Chicago, Ill., to December, 1862. 3rd Brigade. Casey's Division, Defences of Washington, D. C., to February, 1863. 3rd Brigade, Abercrombie's Division, 22nd Army Corps, to June, 1863. 3rd Brigade, 3rd Division, 2nd Army Corps, Army of the Potomac, to March, 1864. 3rd Brigade, 1st Division, 2nd Army Corps, to November, 1864. 3rd Brigade, 1st Division, 2nd Army Corps, to June, 1865.

SERVICE.—Defence of Harper's Ferry, W. Va., Septem­ber 12-15, 1862. Maryland Heights September 12-13. Bolivar Heights September 14-15. Regiment surren­dered Septem­ber 15. Paroled September 16 and sent to Annapolis, Md.; thence to Camp Douglas, Chicago, Ill., and duty there guard­ing prisoners till November. Declared exchanged Novem­ber 22, 1862. Moved to Washington, D. C., Novem­ber 23-25. Camp at Arlington Heights, Va., Defences of Washington to December 3, 1862, and at Centreville, Va., till June, 1863. Ordered to join Army of the Potomac in the field and joined 2nd Army Corps June 25. Gettysburg (Pa.) Campaign June 25—July 24. Battle of Gettysburg July 1-3. Pursuit of Lee to Manassas Gap, Va., July 5-24. Duty on line of the Rappahannock and Rapidan till October. Advance from the Rappahannock to the Rapidan September 13-17. Bristoe Campaign October 9-22. Auburn and Bristoe October 14. Advance to line of the Rappahan­nock November 7-8. Brandy Station November 8. Mine Run Campaign November 26—December 2. Duty near Brandy Station, Va., till May, 1864. Demonstration on the Rapidan February 6-7. Morton's Ford February 6-7. Campaign from the Rapidan to the James May 3—June 15. Battles of the Wilderness May 5-7; Spottsylvania May 8-12; Po River May 10; Spottsylvania Court House May 12-21. Assault on the Salient "Bloody Angle," May 12. North Anna River May 23-26. On the line of the Pamunkey May 26-28. Totopoto­moy May 28-31. Cold Harbor June 1-12. Before Petersburg June 16-28. Siege of Petersburg June 16, 1864, to April 2, 1865. Jerusalem Plank Road, Weldon Railroad, June 22-23, 1864. Demonstration north of James River July 27-29. Deep Bottom July 27-28. Demonstration north of James River August 13-20. Straw­berry Plains, Deep Bottom, August 14-18. Ream's Station August 25. Reconnaissance to Hatcher's Run December 9-10. Dabney's Mills February 5-7, 1865. Watkins' House March 25. Appomattox Campaign March 28—April 9. On line of Hatcher's and Gravelly Runs March 29-30. White Oak Road March 31. Sutherland Station and fall of Petersburg, April 2. Pursuit of Lee April 3-9. Deatonville Road, Sailor's Creek, April 6. High Bridge and Farmville April 7. Appomattox Court House April 9. Surrender of Lee and his army. At Burkesville till May 2. Moved to Washington, D. C., May 2-12. Grand Review May 23. Mustered out June 3, 1865. Veterans and Recruits transferred to 4th New York Heavy Artillery.

Regiment lost during service 16 Officers and 137 Enlisted men killed and mortally wounded, and 1 Officer and 122 Enlisted men by disease. Total 276.