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, Col. Burr Porter, was organized in the States of New York, Massachusetts and Vermont, under special authority from the War Department, for services on he northern frontiers for one year. The New York battalion consisted of five companies, a, H, I, K and L, and under the rulings of the War Department, the field officers of the regiment were appointed by the Governor of this State.

The first company, L, Capt. David A. Piercy, was recruited, and February 24, 1865, mistered in the United States service at Malone; the second, Company H, Capt. Henry E. Turner, was recruited, and February 22, 1865, mustered in the United States service at Watertown; the third, Company K, Capt. Edgar Hinkley, was recruited, and February 24, 1865, mustered in the United States service at Buffalo; the fourth, Company G, Capt. Pliny Moore, was recruited, and February 11, 1865, mustered in the United States service at Plattsburg; and the fifth, Company I, Capt. Newton H. Davis, was recruited, and February 22, 1865, mustered in the United States service at Malone.

These companies were mustered out and honorably discharged under Col. Ferris Jacobs, Jr.; L and I at Ogdensburg, July 1 and 3, 1865, respectively; H at Madison Barracks, Sackett's Harbor, July 7; K at Fort Porter, Buffalo, June 29; and G at Plattsburg, July 6, 1865; having lost by death of disease, three enlisted men.

The following is taken from The Union army: a history of military affairs in the loyal states, 1861-65 -- records of the regiments in the Union army -- cyclopedia of battles -- memoirs of commanders and soldiers, Volume II: New York, Maryland, West Virginia and Ohio. Madison, WI: Federal Pub. Co., 1908.

Twenty-sixth Cavalry.—Cols., Burr Porter, Ferris Jacobs, Jr.; Lieut.-Cols., Ferris Jacobs, Jr., William E. Beardsley; Majs., William E. Beardsley, Charles E. Rice, Josiah Grout, Jr., Edward T. Bouve. This regiment, known as the Frontier cavalry, was organized in the states of New York, Massachusetts and Vermont under special authority from the war department, to serve on the northern frontier for one year. The five companies, G, H, I, K and L, composing the N. Y. battalion, were recruited in the counties of St. Lawrence, Jefferson, Lewis. Franklin, Clinton, Essex and Erie, and were mustered into the U. S. service from Feb. Ii to 24, 1865. Gov. Fenton appointed the field officers of the regiment, under a ruling of the war department. The above companics were mustered out under Col. Jacobs from June 29 to July 7, 1865, having lost 3 men who died of disease.