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Muster In: Organized by direction of the President May 4, 1861, and confirmed by Act of Congress July 29, 1861.1
Muster Out: Unit existed after the Civil War.2

Commander(s):
Captain Horace K. Thatcher
Commander Image

Captain Charles H. Ingraham
Commander Image

Captain John McClintock
Commander Image

Captain William H. Brown
Commander Image

Commander 5
Commander Image

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

Second Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army6,7

Third Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army10,11

  • Commander: Captain Horace K. Thatcher (July 31, 1864)12
  • Unit Strength:
  • Weapons:

Fourth Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army13,14

  • Commander: Captain Charles H. Ingraham (August 31, 1864)15
  • Unit Strength:
  • Weapons:

Fifth Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army16,17

  • Commander:
  • Unit Strength:
  • Weapons:

Sixth Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army18,19

  • Commander: Captain John McClintock (October 31, 1864)20
  • Unit Strength:
  • Weapons:

Seventh Offensive Order of Battle: First Brigade | Second Division | V Corps | Army of the Potomac | Union Army (November 1, 1864)21

  • Commander:
  • Unit Strength:
  • Weapons:
  • Note: Left the Siege of Petersburg on November 1, 1864, bound for duty at Elmira POW Camp in Elmira, NY.22

Eighth Offensive Order of Battle:

  • Was no longer at the Siege of Petersburg.23

Ninth Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army (from April 4 on)24,25

  • Commander: Captain William H. Brown (March 31, 1865)26
  • Unit Strength:
  • Weapons:
  • Note: The 14th United States was ordered to the field on an unspecified date in (presumably late) March 1865, arriving at City Point, Va., April 4 per Dyer’s Compendium.  However, the Official Records lists the 14th US as part of the Provost Guard already on March 31.  More research is needed.27,28
  • Note: Apparently only the Second Battalion of the 14th United States was present on March 31, 1865.  This distinction is not called out in earlier orders of battle in the Official Records.  More research is needed.29

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles30:

  • Before Petersburg June 16-18.
  • Siege of Petersburg June 16 to November 2.
  • Mine Explosion, Petersburg, July 30 (Reserve).
  • Weldon Railroad August 18-21.
  • Poplar Springs Church, Peeble’s Farm, September 29-October 2.
  • Boydton Plank Road, Hatcher’s Run, October 27-28.
  • Ordered to New York November 1, thence to Elmira, N.Y., and duty there until March, 1865.
  • Ordered to the field, arriving at City Point, Va., April 4.
  • Provost duty until May, and at Richmond, Va., until ?.

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. 224
    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. 546
    5. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 14th United States Entry, Page 4; Summary Statements of Quarterly Returns of Ordnance and Ordnance Stores on Hand in Regular and Volunteer Army Organizations, 1862-1867, 1870-1876. (National Archives Microfilm Publication M1281, Roll 7); Records of the Office of the Chief of Ordnance, 1797-1969, Record Group 156; National Archives Building, Washington, D.C.: The unit had 48 Springfield Rifles.
    6. 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. 224
    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. 546
    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. 546
    9. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 14th United States Entry, Page 4; Summary Statements of Quarterly Returns of Ordnance and Ordnance Stores on Hand in Regular and Volunteer Army Organizations, 1862-1867, 1870-1876. (National Archives Microfilm Publication M1281, Roll 7); Records of the Office of the Chief of Ordnance, 1797-1969, Record Group 156; National Archives Building, Washington, D.C.: The unit had 48 Springfield Rifles.
    10. 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 255
    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 732
    12. 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 732
    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), page 615: “Organization of the Army of the Potomac…August 31, 1864”
    14. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 1 (Serial Number 87), page 123: “Return of Casualties in the Union Forces (August 1864)”
    15. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 2 (Serial Number 88), page 615: “Organization of the Army of the Potomac…August 31, 1864”
    16. Sommers, Richard J. “Grant’s Fifth Offensive at Petersburg: A Study in Strategy, Tactics, and Generalship.  The Battle of Poplar Spring Church, the First Battle of the Darbytown Road, the Second Battle of the Squirrel Level Road, the Second Battle of the Darbytown Road (Ulysses S. Grant, Virginia).” Doctoral Thesis. Rice University, 1970. Print. p. 1300.
    17. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 1 (Serial Number 87), page 140: “Return of Casualties in the Union Forces (September-October 1864)”
    18. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 3 (Serial Number 89), page 461: “Organization of the Union Forces” (October 31, 1864)”
    19. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 1 (Serial Number 87), page 156: “Return of Casualties in the Union Forces…Boydton Plank Road, Va., October 27-28, 1864”
    20. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 3 (Serial Number 89), page 461: “Organization of the Union Forces” (October 31, 1864)”
    21. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    22. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    23. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    24. 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 564: “Organization of the Union Forces” (March 31, 1865)
    25. 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 581: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865”
    26. 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 564: “Organization of the Union Forces” (March 31, 1865)
    27.  A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    28. 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 564: “Organization of the Union Forces” (March 31, 1865)
    29. 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 564: “Organization of the Union Forces” (March 31, 1865)
    30. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)

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