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80th New York Infantry (20th Militia)

Editor’s Note: Do you have information on this unit’s role at the Siege of Petersburg?  Please contact us using the Contact button in the menu at the top of the screen.  We are happy to exchange information with other researchers.

Note: The 80th New York was also known as the 20th New York Militia.

Muster In: Tendered services to Government February, 1861. Organized at Kingston, N.Y., from 20th Regiment State Militia Infantry and mustered in September 20 to October 20, 1861.1
Muster Out: Mustered out January 29, 1866.2

Commander(s):
Colonel Theodore B. Gates
TheodoreBGates80thNYv052p25623

Colonel Jacob B. Hardenbergh
JacobBHardenbergh80thNYv034p16884

Lieutenant Colonel John McEntee
JohnMcEntee80thNYv034p16875

Major Walter A. Van Renssalaer
Commander Image Needed

Major John R. Leslie
JohnRLeslie80thNYv034p16876

First Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army7,8

Second Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army10,11

Third Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army14,15

  • Commander: Colonel Theodore B. Gates (July 31, 1864)16
  • Unit Strength:
  • Weapons:

Fourth Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army17

  • Commander:
    • Major Walter A. Van Renssalaer (at least August 9, 1864) (while Colonel Gates commanded post of City Point)18
    • Colonel Theodore B. Gates (August 31, 1864)19
  • Unit Strength:
  • Weapons:

Fifth Offensive Order of Battle: OOB: Provost Guard | Army of the Potomac | Union Army20

  • Commander:
  • Unit Strength:
  • Weapons: Springfield Rifles (.58 caliber) (September 30, 1864)21
  • Note: The 80th New York was stationed at City Point, Va. during the Fifth Offensive.22

Sixth Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army23

  • Commander: Colonel Theodore B. Gates (October 31, 1864)24
  • Unit Strength:
  • Weapons:
  • Note: John Bevines’ Independent Company New York Infantry was serving with the Engineers and Defenses of City Point.  I believe Bevines’ Company had been a part of the 80th New York prior to becoming independent.  More research is needed.25,26

Seventh Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army27

  • Commander: Lieutenant Colonel John McEntee (December 31, 1864)28
  • Unit Strength:
  • Weapons:

Eighth Offensive Order of Battle: Provost Guard | Army of the Potomac | Union Army29,30

  • Commander: Major John R. Leslie (January 31 & February 28, 1865)31,32
  • Unit Strength:
  • Weapons:

Ninth Offensive Order of Battle:

Provost Guard | Army of the Potomac | Union Army (March 1-28(?), 1865)

Independent Brigade | Ninth Corps | Army of the Potomac | Union Army (March 28(?) on, 1865)33,34

  • Commander: Colonel Jacob B. Hardenbergh (March 31, 1865)35
  • Unit Strength:
  • Weapons:
  • Note: The 80th New York transferred from the Provost Guard to the newly formed Independent Brigade, Ninth Corps, AotP on or near March 28, 1865.

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles36:

  • Before Petersburg June 16-18.
  • Siege operations against Petersburg and Richmond June 16, 1864, to April 2, 1865.
  • Assigned to garrison and guard duty at City Point, Va., Headquarters of the Army, June 18, 1864, to April 14, 1865.
  • Explosion at City Point (August 9, 1864)37
  • Assault on and fall of Petersburg April 2.
  • Occupation of Petersburg April 3.
  • Provost duty at Richmond April 14 to November 27, 1865.

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. Theodore B. Gates image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 52 Page 2562.  United States Army Heritage and Education Center, Carlisle, PA.
    4. Jacob B. Hardenbergh image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 34 Page 1688.  United States Army Heritage and Education Center, Carlisle, PA.
    5. John McEntee image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 34 Page 1687.  United States Army Heritage and Education Center, Carlisle, PA.
    6. John R. Leslie image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 34 Page 1687.  United States Army Heritage and Education Center, Carlisle, PA.
    7. 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 218
    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), page 542
    9. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 80th New York Entry, Page 118; 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.
    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 218
    11. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 2 (Serial Number 81), page 542
    12. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 2 (Serial Number 81), page 542
    13. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 80th New York Entry, Page 118; 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.
    14. 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 250
    15. 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 728
    16. 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 728
    17. 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 611: “Organization of the Army of the Potomac…August 31, 1864”
    18. “One Hundred and Seventieth Regiment, N. Y. V.” Sunday Mercury (New York, New York). August 21, 1864, p. 7 col. 2
    19. 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 611: “Organization of the Army of the Potomac…August 31, 1864”
    20. 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. 1297.
    21. Volume 15 (Ordnance Returns for the Third Quarter, July-September, 1864); 80th New York Entry, Page 114; 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.
    22. 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. 1297.
    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 457: “Organization of the Union Forces” (October 31, 1864)”
    24. 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 457: “Organization of the Union Forces” (October 31, 1864)”
    25. 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 458: “Organization of the Union Forces” (October 31, 1864)”
    26. Holzer, Harold. The Union Preserved: A Guide to Civil War Records in the NYS Archives. Fordham University Press, 2009., p. 140
    27. 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 1114: “Organization of the Union Forces” (December 31, 1864)
    28. 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 1114: “Organization of the Union Forces” (December 31, 1864)
    29. 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 324: “Organization of the Union Forces” (January 31, 1865)
    30. 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 738: “Organization of the Union Forces” (February 28, 1865)
    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 324: “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 738: “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 1 (Serial Number 95), page 574: “Organization of the Union Forces” (March 31, 1865)
    34. 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 590: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 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 574: “Organization of the Union Forces” (March 31, 1865)
    36. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    37. “One Hundred and Seventieth Regiment, N. Y. V.” Sunday Mercury (New York, New York). August 21, 1864, p. 7 col. 2
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