25th New York Cavalry (dismounted)

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Muster In: Regiment organized at Saratoga Springs, N.Y., and at Hart’s Island, N.Y. Harbor, and mustered in by Companies as follows: Companies “A” and “B” February 20, Companies “C” and “D” March 19, Company “E” April 14, Company “F” April 23, Company “G” April 20, Company “H” July 29, Company “I” September 18, Company “K” May 16, Company “L” October 15 and Company “M” October 20, 1864.¹
Muster Out: Mustered out at Hart’s Island, N.Y., June 27, 1865, and honorably discharged from service.²

Commander(s):
Commander 1
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Commander 2
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Commander 3
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First Offensive Order of Battle: Defenses of Washington, D.C. | Union Army³

• Not present at the Siege of Petersburg.⁴

Second Offensive Order of Battle: Defenses of Washington, D.C. | Union Army⁵

• Not present at the Siege of Petersburg.⁶

Third Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army (July 1-7, 1864)⁷

• Commander:
• Unit Strength:
• Weapons:
• Note: The 25^th New York Cavalry was transferred to Camp Stoneman in Washington, D.C. on July 7, 1864.⁸

Fourth Offensive Order of Battle:

• Not present at the Siege of Petersburg.⁹

Fifth Offensive Order of Battle:

• Not present at the Siege of Petersburg.¹⁰

Sixth Offensive Order of Battle:

• Not present at the Siege of Petersburg.¹¹

Seventh Offensive Order of Battle:

• Not present at the Siege of Petersburg.¹²

Eighth Offensive Order of Battle:

• Not present at the Siege of Petersburg.¹³

Ninth Offensive Order of Battle:

• Not present at the Siege of Petersburg.¹⁴

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles¹⁵:

• Duty in the Defenses of Washington, D.C., until June, 1864.
• Ordered to the field and Provost duty with Army of the Potomac to July, 1864.
• Fort Stevens and repulse of Early’s attack on Washington, July 11-12.

Bibliography:

Siege of Petersburg Documents Which Mention This Unit:

• NP: July 10, 1864 Sunday Mercury (New York): 25th NY Cavalry at the Siege of Petersburg, Early July 1864

Sources: