18th Regiment
New York State Militia
New York National Guard
Civil War

History
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: July 3, 1863
Mustered out: August 15, 1863

This regiment, not now in existence, but then located in the counties of Putnam and Westchester, furnished in 1861 one company each to the 9th, 17th and 38th Volunteers.

June 18, 1863, it was ordered to Harrisburg, Pa., and, commanded by Col. James Ryder, left the State (four companies), July 3, 1863; was mustered in the United States service for thirty days at Baltimore, Md., July 8, 1863; served there and at Frederick, in the 2d Separate Brigade, Middle Department, 8th Corps, and was mustered out at New York city August 15, 1863.

In 1864 a detachment of the regiment served with and as part of the 15th Militia in New York harbor for thirty days.

In its service in 1863, the regiment lost by death, of disease, two enlisted men.

See here for a brief history of the State Militia / National Guard.

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 int-historians@ng.army.mil 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.

Items in the museum collection are in bold.

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