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Muster In: Organized at St. Johnsbury and mustered in July 16, 1861.1
Muster Out: Mustered out July 11, 1865.2

Commander(s):
Colonel Thomas O. Seaver
Commander Image

Colonel George P. Foster (of the 4th VT)
Commander Image

Lieutenant Colonel Stephen M. Pingree (of the 4th VT)
Commander Image

Lieutenant Colonel Horace W. Floyd
Commander Image

Captain Alonzo H. Newt
Commander Image

Commander 6
Commander Image

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

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

Third Offensive Order of Battle: Second Brigade | Second Division | VI Corps | Army of the Potomac | Union Army11

  • Commander: Lieutenant Colonel Stephen M. Pingree (of the 4th VT, commanded 3rd and 4th VT at least in late July 1864)(July 31, 1864)12
  • Unit Strength:
  • Weapons:
  • Note: The Second Division, Sixth Corps moved to City Point, Va. on July 9 and embarked for Washington, D.C. on July 10, 1864.  The Second Brigade has no itinerary listed.13,14

Fourth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.15

Fifth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.16

Sixth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.17

Seventh Offensive Order of Battle: Second Brigade | Second Division | VI Corps | Army of the Potomac | Union Army18

  • Commander: Lieutenant Colonel Horace W. Floyd (December 31, 1864)19
  • Unit Strength: 269 officers and men PFD (December 1, 1864)20
  • Weapons:
  • Note: This unit moved to the Siege of Petersburg from December 9-12, 1864.21
  • Note: The 3rd and 4th Vermont were operating as a single unit in the field at this time.22
  • Note: The 3rd Vermont consisted of six (6) companies at this time.23

Eighth Offensive Order of Battle: Second Brigade | Second Division | VI Corps | Army of the Potomac | Union Army24,25

  • Commander:
    • Captain Alonzo H. Newt (January 1865)26
    • Lieutenant Colonel Horace W. Floyd (of the 3rd VT)(February 28, 1865)27
    • Colonel George P. Foster (of the 4th VT)(temporarily commanding Second Brigade while Brigadier General Lewis A. Grant took a leave of absence starting on February 20)28
  • Unit Strength:
    • 306 officers and men PFD (January 1, 1865)29
    • 333 officers and men PFD (February 1, 1865)30
  • Weapons:
  • Note: The 3rd and 4th Vermont were operating as a single unit in the field at this time.31,32
  • Note: The 3rd Vermont consisted of six (6) companies at this time.33,34

Ninth Offensive Order of Battle: Second Brigade | Second Division | VI Corps | Army of the Potomac | Union Army35,36

  • Commander: Brevet Colonel Horace W. Floyd (commanded 3rd and 4th Vermont on March 31, only 3rd Vermont after)(March 31, 1865)37
  • Unit Strength: 331 officers and men PFD (March 2, 1865)38
  • Weapons:
  • Note: I thought the 3rd and 4th Vermont were operating as a single unit in the field during the entire 9th Offensive.  However, the Official Records XLVI, Pt 1, shows the 3rd and 4th Vermont only together on March 31.  More research is needed.39

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles40:

  • Before Petersburg June 18-19.
  • Jerusalem Plank Road June 22-23.
  • Siege of Petersburg until July 9.
  • Moved to Washington, D.C., July 9-11.
  • …away…
  • Moved to Petersburg, Va., December 9-12.
  • Siege of Petersburg December 13, 1864, to April 2, 1865.
  • Fort Fisher, before Petersburg, March 25, 1865.
  • Appomattox Campaign March 28-April 9.
  • Assault on and fall of Petersburg April 2.
  • Sailor’s Creek April 6.
  • 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. 227
    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. 548
    5. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 3rd Vermont Entry, Page 66; 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.
    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. 227
    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. 548
    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. 548
    9. Report of the Adjutant & Inspector General of the State of Vermont, From October 1, 1863, to October 1, 1864 (Walton’s Steam Press: 1864), p. 60. (Hat tip to Tom Ledoux at Vermont in the Civil War for this information.)
    10. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 3rd Vermont Entry, Page 66; 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.
    11. 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 258
    12. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XXVII, Part 2 (Serial Number 71), page 550
    13. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XXVII, Part 1 (Serial Number 70), page 272
    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. 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 1120: “Organization of the Union Forces” (December 31, 1864)
    19. 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 1120: “Organization of the Union Forces” (December 31, 1864)
    20. Report of the Adjutant & Inspector General of the State of Vermont, From Oct. 1, 1864, to Oct. 1, 1865 (Walton’s Steam Printing Establishment: 1865), p. 44. (Hat tip to Tom Ledoux at Vermont in the Civil War for this information.)
    21. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    22. 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 1120: “Organization of the Union Forces” (December 31, 1864)
    23. 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 1120: “Organization of the Union Forces” (December 31, 1864)
    24. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 330: “Organization of the Union Forces” (January 31, 1865)
    25. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 743: “Organization of the Union Forces” (February 28, 1865)
    26. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 330: “Organization of the Union Forces” (January 31, 1865)
    27. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 743: “Organization of the Union Forces” (February 28, 1865)
    28. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 743: “Organization of the Union Forces” (February 28, 1865)
    29. Report of the Adjutant & Inspector General of the State of Vermont, From Oct. 1, 1864, to Oct. 1, 1865 (Walton’s Steam Printing Establishment: 1865), p. 44. (Hat tip to Tom Ledoux at Vermont in the Civil War for this information.)
    30. Report of the Adjutant & Inspector General of the State of Vermont, From Oct. 1, 1864, to Oct. 1, 1865 (Walton’s Steam Printing Establishment: 1865), p. 44. (Hat tip to Tom Ledoux at Vermont in the Civil War for this information.)
    31. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 330: “Organization of the Union Forces” (January 31, 1865)
    32. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 743: “Organization of the Union Forces” (February 28, 1865)
    33. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 330: “Organization of the Union Forces” (January 31, 1865)
    34. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 2 (Serial Number 96), page 743: “Organization of the Union Forces” (February 28, 1865)
    35. 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 571: “Organization of the Union Forces” (March 31, 1865)
    36. 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 587: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865”
    37. 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 571: “Organization of the Union Forces” (March 31, 1865)
    38. Report of the Adjutant & Inspector General of the State of Vermont, From Oct. 1, 1864, to Oct. 1, 1865 (Walton’s Steam Printing Establishment: 1865), p. 44. (Hat tip to Tom Ledoux at Vermont in the Civil War for this information.)
    39. 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 571: “Organization of the Union Forces” (March 31, 1865)
    40. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)

    ***



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