The following is taken from New York in the War of the Rebellion, 3rd ed. Frederick Phisterer. Albany: J. B. Lyon Company, 1912.

This regiment is located in New York city and still in existence. On the 4th of April, 1786, the 1st Brigade, 1st Division, was formed in New York city into a brigade of artillery, and was to consist of the 1st and 2d Regiments and a battalion. In April, 1807, the 3d Regiment of New York Artillery was organized of this battalion and other troops. July 27, 1847, the designation of the regiment was changed to the 8th Regiment. In December, 1893, it was reduced to a battalion of four companies. It was reorganized as a regiment, February 14, 1896. New companies were organized for the battalion, as follows: On July 8, 1895, Company A; on October 30, 1895, Company E; on January 27, 1896, Company H, and on February 14, 1896, Company G, when it was reorganized as a regiment. April 28, 1898, it was authorized to be organized as a twelve company regiment to enter the service of the United States. It was in the service of the United States from September 15 to December 15, 1812; from April 23 to August 2, 1861; from May 29 to September 10, 1862, and from June 17 to July 23, 1863. It was mustered in the United States service as the 8th Regiment Infantry, New York Volunteers, May 14, 17 and 19, 1898, and mustered out of such service, November 3, 1898. Companies L and M were disbanded December 22, 1898.
The regiment has received authority to place silver rings on the lances of its colors, engraved as follows:
On the National Color.— Fort Gansevoort, 1812; Fort Greene, 1812; Washington, April, 1861; Bull Run, July 21, 1861; Yorktown, 1862; Gettysburg campaign, 1863; Spanish-American war, 1898.
On the State Color.— Flour riot, 1826; Stonecutters' riot, 1835; great fire, New York city, 1845; Astor Place riot, 1849; Police riot, 1857; Dead Rabbit riot, 1857; Sepoy riot, 1858; Camp Corcoran Legion, 1862; Draft riots, 1863; Orange riots, 1871; Syracuse, 1877; Brooklyn, 1895; service in the War of the Rebellion.
April 20, 1861, the regiment was ordered to Washington, D. C, and commanded by Col. Geprge Lyons, left the State on the 23d; it was mustered in the service of the United States April 25, 1861, at Washington, to serve three months; it served in the ist Brigade, 2d Division, Army of Northeastern Virginia, and was mustered out at New York city, August 2, 1861. Company I served as a light battery; see Varian's Battery.
May 29, 1862, the regiment again left the State en route to Washington, D. C, under the command of Col. Joshua M. Varian, and re-entered the service of the United States for three months; served principally at Yorktown, Va.; it was discharged and mustered out September 10, 1862, at New York city.
June 17, 1863, the regiment, commanded by Colonel Varian, left the State en route to Harrisburg, Pa., where it was again mustered in the United States service for thirty days; it served principally at and about that place in the ist Brigade, ist Division, Department Susquehanna, and was mustered out at New York city, July 23, 1863.
The regiment lost .in 1861: Killed in action, 9 enlisted men; died of wounds received in action, 1 enlisted man; in 1862, died of disease, etc., 6 enlisted men; total, 16; and it, or parts of it, participated in the following engagements, etc.: Bull Run, Va., July 21, 1861, loss, killed, 8 enlisted men; wounded, 17 enlisted men; missing, 4 officers and 9 enlisted men; total, 38; skirmishes, at Shippensburg, Pa., June 23, 1863; at Kingston, Pa., June 26, 1863; near Oyster Point, Pa., June 28, 1863; near Fort Washington, Pa., June 29, 1863, and at Carlisle, Pa., July 1, 1863.

The following is taken from Third Annual Report of the Bureau of Military Statistics of the State of New York, Albany: [The Bureau], (C. Wendell), 1866.

EIGHTH REGIMENT, N. Y. S. MILITIA.
The Eighth regiment is in the Second brigade, First division of the State militia organization. It left New York on the 23d of April. The field officers were: 
Colonel—George Lyons.
Lieutenant-Colonel—Charles G. Waterbury.
Major—Obed. F. Wentworth.
The regiment embarked, a portion on the steamship Alabama, and the remainder on the ship Montgomery, The line of their march through the streets of New York was the scene of wild enthusiasm, and their friends gathering in balconies and windows, and cheering and inspiring the soldiers with their smiles and warm approvals. They proceeded to Annapolis, and thence to Wash¬ington, and were encamped at Arlington House, Virginia. The regiment was engaged in the battle of Bull Run, and served in the First brigade (Colonel Andrew Porter's), Second division (Colonel Hunter's). Colonel Porter makes honorable mention of the services of the Eighth New York Militia in his report.
Upon first entering service, the regiment remained at Annapolis until the 8th of May, when, accompanied by the 6th Massachusetts Militia, the whole under command of General Butler, they pro¬ceeded to the Relay House and took position commanding Rail¬road Bridge. On the 19th of May, a detachment of 600 men, under command of Lieutenant-Colonel Waterbury and Major Wentworth, and a like detachment of the Sixth Massachusetts, under Colonel Jones, proceeded by railroad to Baltimore and took possession of Federal Hill, thus commanding that city; being the first troops to enter Baltimore after the riots. A few days afterwards, being relieved by Pennsylvania troops, the de¬tachment returned to the Relay House, where the regiment remained until about the 8th of June, when it proceeded to Wash¬ington and went into camp at Kalorama, and remained there until troops were sent over into Virginia. The Eighth left Washingtom on the Sunday following, crossed the Long bridge, and taking possession of Arlington House, where it remained as guard to the headquarters of General McDowell, until the army moved to Bull
Run. 
The time of the regiment expiring on the 23d (two days after the battle), they received orders for home, leaving on the 24th and arriving in New York on the 26th of July, where they met with an enthusiastic reception— Broadway was thronged, and vociferous cheers greeted them at every crossing.