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186th Infantry Regiment
Civil War

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

Mustered in: September 5-29,1864
Mustered out: June 2, 1865.

This regiment, Col. Bradley Winslow, was organized at Sackett's Harbor; the companies were mustered in the service of the United States at that place for one year; A and B September 5th; C and D September 7th; E and F September 8th; H September 10th; I September 21st; and K September 29th; Company G was mustered in for one and three years September 28, 1864, at Hart's Island. The few three years' men in the regiment were, June 2, 1865, transferred to the 79th Infantry.

The companies were recruited principally: A at Wilna, Harrisburg, Croghan and Champion; B at Sackett's Harbor; C at Adams, Lorraine, Worth and in Richmond county; D at Clayton, Philadelphia, Pinkney, Rutland, Theresa and in Richmond county; E at Cape Vincent, Alexandria and Orleans; F at Leyden, New Bremen, West Turin, Pinkney, Croghan and Denmark; G at Albany, Watertown, Tarrytown, Plattsburg, New York city, Brooklyn, Herkimer and Graysville; H at Champion, Watertown, Sackett's Harbor, Wilna, Hounsfield, Brownville and Montague; I at Sackett's Harbor, Pamelia, Brownville, Adams, Hounsfield, Worth, Watertown, Lorraine and Richmond county; and K at Watertown.

The regiment left the State September 28, 1864; it served in the 2d Brigade, 2d Division, 9th Corps, and, commanded by Lieut.- Col. E. Jay Marsh, it was honorably discharged and mustered out June 2, 1865, near Alexandria, Va.

During its service the regiment lost by death, killed in action, 33 enlisted men; of wounds received in action, 15 enlisted men; of disease and other causes, 1 officer, 39 enlisted men; total, 1 officer, 87 enlisted men; aggregate, 88.

Battles and Casualties Table from Phisterer

Civil War Newspaper Clippings

186th National Flag 186th National Color

Muster Roll

Unit Roster

Further Reading
This is meant to be a comprehensive list. If, however, you know of a resource that is not listed below, please send an email to with the name of the resource and where it is located. This can include photographs, letters, articles and other non-book materials. Also, if you have any materials in your possession that you would like to donate, the museum is always looking for items specific to New York's military heritage. Thank you.


New York State Division of Military and Naval Affairs: Military History
Last modified: January 25, 2018

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