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Muster In: Organized at Rochester, N.Y., and mustered in by Companies as follows: Company “A” December 20, 1863; Companies “B” and “C” January 5; Companies “D,” “E” and “F” January 10; Companies “G,” “H” and “I” February 2; Company “K” February 6; Company “L” February 12, and Company “M” February 23, 1864.1
Muster Out: Mustered out August 1, 1865.2

Commander(s):
Colonel Samuel J. Crooks
Commander Image

Major Caleb Moore
Commander Image

Commander 3
Commander Image

First Offensive Order of Battle: Second Brigade | Third Division | Cavalry Corps | Army of the Potomac | Union Army3,4

  • Commander:
  • Unit Strength:
  • Weapons:

Second Offensive Order of Battle: Second Brigade | Third Division | Cavalry Corps | Army of the Potomac | Union Army5,6

  • Commander:
    • Colonel Samuel J. Crooks (captured on Wilson-Kautz Raid late June 1864)7
    • Major Caleb Moore (June 30, 1864)8
  • Unit Strength:
  • Weapons:

Third Offensive Order of Battle: Second Brigade | Third Division | Cavalry Corps | Army of the Potomac | Union Army9,10

  • Commander: Major Caleb Moore (July 31, 1864)11
  • Unit Strength: ~150 officers and men PFD (mid-July 1864)12
  • Weapons:

Fourth Offensive Order of Battle: Second Brigade | Third Division | Cavalry Corps | Army of the Potomac | Union Army

  • Commander:
  • Unit Strength:
  • Weapons:
  • Note: The Third Cavalry Division, Cavalry Corps, Army of the Potomac was ordered to Washington, D. C. on August 4-5, 1864 and embarked on or near August 6-7, 1864.1314

Fifth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.15

Sixth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.16

Seventh Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.17

Eighth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.18

Ninth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.19

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles20:

  • Long Bridge June 12.
  • Riddle’s Shop June 13.
  • White Oak Swamp June 13.
  • Malvern Hill June 15.
  • Wilson’s Raid on South Side & Danville Railroad June 22-30.
  • Ream’s Station June 22.
  • Jerusalem Plank Road June 22-23 (Detachment).
  • Dinwiddie Court House June 22.
  • Black and White Station June 23.
  • Nottaway Court House June 23.
  • Stony Creek Station June 23.
  • Staunton River Bridge (or Roanoke Station) June 25.
  • Sappony Church (or Stony Creek) June 28.
  • Ream’s Station June 29-30.
  • Before Petersburg until July 30.

Bibliography:

    Siege of Petersburg Documents Which Mention This Unit:

    Sources:

    1. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    2. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    3. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), p. 232
    4. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 2 (Serial Number 81), p. 551
    5. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), p. 232
    6. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 2 (Serial Number 81), p. 551
    7. The 22d Cavalry.” Brockport (NY) Republic. July 14, 1864, p. 3 col. 1
    8. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 2 (Serial Number 81), p. 551
    9. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), page 262
    10. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), page 736
    11. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), page 736
    12.  No TitleBrockport (NY) Republic. July 21, 1864, p. 3 col. 3: “Sergt. Maj. E. A. Dayton, of the 22d N. Y. Cavalry, writes to Hon. Jerome Fuller of this village, that the regiment is reduced to one hundred and fifty men…”
    13. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 2 (Serial Number 88), pages 61, 76 “Organization of the Army of the Potomac…August 31, 1864”
    14. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    15. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    16. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    17. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    18. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    19. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    20. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)

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