Formed in November 1861, the Brigade was largely recruited in New York, Massachusetts and Pennsylvania. Its initial regiments were the 69th, 88th and 63rd New York State Volunteers. Other units identified as part of the Brigade included the 29th Massachusetts, 116th Pennsylvania and 25th Massachusetts Volunteer Infantry Regiments. The Brigade fought in all of the major campaigns of the Army of the Potomac. It lost over 4,000 men during the war. This total is larger than the number of soldiers who served in the Brigade at any single time. Eleven Brigade members were awarded the Congressional Medal of Honor. Of the Five Officers who commanded the Brigade, three were killed or mortally wounded. Colonel Richard Byrnes (Cold Harbor), Colonel Patrick Kelly (Petersburg), and Brigadier General Thomas A. Smyth (Farmville). The Brigade was mustered out in June 1865.
Irish Brigade Monument
29th Massachusetts Infantry, 63rd New York Infantry 69th New York Infantry, 88th New York Infantry
IRISH BRIGADE AT ANTIETAM
BRIGADIER GENERAL THOMAS FRANCIS MEAGHER