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90th Pennsylvania Infantry

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Muster In: Organized at Philadelphia October 1, 1861.1
Muster Out: Consolidated with 11th Pennsylvania Infantry November 26, 1864.2

Commander(s):
Lieutenant Colonel William A. Leech
Commander Image

Captain William P. Davis
Commander Image

Commander 3
Commander Image

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

Second Offensive Order of Battle: First Brigade | Third Division | V Corps | Army of the Potomac | Union Army7,8

Third Offensive Order of Battle: First Brigade | Third Division | V Corps | Army of the Potomac | Union Army12,13

  • Commander: Lieutenant Colonel William A. Leech (July 31, 1864)14
  • Unit Strength:
  • Weapons:

Fourth Offensive Order of Battle: First Brigade | Third Division | V Corps | Army of the Potomac | Union Army15,16

  • Commander: Captain William P. Davis (August 31, 1864)17
  • Unit Strength:
  • Weapons:

Fifth Offensive Order of Battle: Second Brigade | Third Division | V Corps | Army of the Potomac | Union Army18

  • Commander:
  • Unit Strength:
  • Weapons:

Sixth Offensive Order of Battle: Second Brigade | Third Division | V Corps | Army of the Potomac | Union Army19

  • Commander: Captain William P. Davis (October 31, 1864)20
  • Unit Strength:
  • Weapons:

Seventh Offensive Order of Battle: Second Brigade | Third Division | V Corps | Army of the Potomac | Union Army (November 1-26, 1864)21,22

  • Commander:
  • Unit Strength:
  • Weapons:
  • Note: Consolidated with 11th Pennsylvania Infantry November 26, 1864. Those veterans who did not reenlist are mustered out.23,24

Eighth Offensive Order of Battle:

  • No longer an independent unit.25

Ninth Offensive Order of Battle:

  • No longer an independent unit.26

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles27:

  • Before Petersburg June 16-18.
  • Siege of Petersburg June 16 to November 26, 1864.
  • Mine Explosion, Petersburg, July 30.
  • Weldon Railroad August 18-21.
  • Reconnaissance to Dinwiddie C. H. September 15.
  • Consolidated with 11th Pennsylvania Infantry November 26, 1864.

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 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 90th Pennsylvania Entry, Page 53; 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. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 90th Pennsylvania Entry, Page 53; 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. ↩
  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), p. 224 ↩
  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. 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 ↩
  10. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 90th Pennsylvania Entry, Page 53; 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. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 90th Pennsylvania Entry, Page 53; 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. ↩
  12. 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 256 ↩
  13. 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 733 ↩
  14. 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 733 ↩
  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. 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 124: “Return of Casualties in the Union Forces (August 1864)” ↩
  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 615: “Organization of the Army of the Potomac…August 31, 1864” ↩
  18. 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. ↩
  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 461: “Organization of the Union Forces” (October 31, 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.  Ayoub, Michael N. The Campfire Chronicles: The words and Deeds of the 88th Pennsylvania 1861-1865 (Xlibris: 2010), p. 274 ↩
  23. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  24.  Ayoub, Michael N. The Campfire Chronicles: The words and Deeds of the 88th Pennsylvania 1861-1865 (Xlibris: 2010), p. 274 ↩
  25. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  26. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  27. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩

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