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Muster In: Organized at Rochester, N.Y., and mustered in November 23, 1861.1
Muster Out: Mustered out June 27, 1865.2

Commander(s):
Lieutenant Colonel William H. Benjamin
Commander Image

Major Edmund M. Pope
Commander Image

Major James Bliss
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: Major Edmund M. Pope (June 30, 1864)7
  • Unit Strength:
  • Weapons:

Third Offensive Order of Battle: Second Brigade | Third Division | Cavalry Corps | Army of the Potomac | Union Army8,9

  • Commander: Lieutenant Colonel William H. Benjamin (July 31, 1864)10
  • Unit Strength:
  • 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, 1864.1112

Fifth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.13

Sixth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.14

Seventh Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.15

Eighth Offensive Order of Battle:

  • No longer present at the Siege of Petersburg.16

Ninth Offensive Order of Battle: Second Brigade | Third Division | Cavalry | Army of the Shenandoah | Union Army17,18

  • Commander: Major James Bliss (March 31, 1865)19
  • Unit Strength:
  • Weapons:
  • Note: Sheridan’s cavalry from the Army of the Shenandoah, formerly the 1st and 3rd Divisions, Cavalry Corps, AotP, crossed the James River from the north side on March 26, 1865 to rejoin the Union Armies operating against Richmond and Petersburg.

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

  • Riddell’s Shop and Long Bridge June 12.
  • White Oak Swamp June 13.
  • Near Harrison’s Landing June 14.
  • St. Mary’s Church and Malvern Hill June 15.
  • Before Petersburg June 17-July 30.
  • Wilson’s Raid on South Side & Danville Railroad June 22-30.
  • Ream’s Station June 22.
  • Black and White Station and Nottaway Court House June 23.
  • Staunton Bridge and Roanoke Station June 25.
  • Columbia Grove June 27.
  • Sappony Church or Stony Creek June 28.
  • Ream’s Station June 29.
  • …away…
  • Appomattox Campaign March 28-April 9.
  • Dinwiddie Court House March 30-31.
  • Five Forks April 1.
  • Fall of Petersburg April 2.
  • Namozine Church April 3.
  • Jettersville April 4.
  • Sailor’s Creek April 6.
  • Appomattox Station April 8.
  • Appomattox Court House April 9.
  • Surrender of Lee and his army.

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 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
    8. 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
    9. 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
    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 XLII, Part 2 (Serial Number 88), pages 61, 76 “Organization of the Army of the Potomac…August 31, 1864”
    12. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    13. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    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. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 1 (Serial Number 95), page 575: “Organization of the Union Forces” (March 31, 1865)
    18. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 1 (Serial Number 95), page 591: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865”
    19. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 1 (Serial Number 95), page 575: “Organization of the Union Forces” (March 31, 1865)
    20. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)

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