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138th Pennsylvania Infantry

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Muster In: Organized at Harrisburg August 16, 1862.1
Muster Out: Mustered out June 23, 1865.2

Commander(s):
Colonel Matthew R. McClennan
Commander Image

Commander 2
Commander Image

Commander 3
Commander Image

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

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

Third Offensive Order of Battle: Second Brigade | Third Division | VI Corps | Army of the Potomac | Union Army10

  • Commander: Colonel Matthew R. McClennan (July 31, 1864)11
  • Unit Strength:
  • Weapons:
  • Note: The Second Brigade, Third Division, Sixth Corps moved to City Point, Va. at 5 am on July 6, 1864 and embarked for Baltimore, MD.12,13

Fourth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.14

Fifth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.15

Sixth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.16

Seventh Offensive Order of Battle: Second Brigade | Third Division | VI Corps | Army of the Potomac | Union Army17

  • Commander: Colonel Matthew R. McClennan (December 31, 1864)18
  • Unit Strength:
  • Weapons:
  • Note: This unit moved to the Siege of Petersburg from December ??-??, 1864.19

Eighth Offensive Order of Battle: Second Brigade | Third Division | VI Corps | Army of the Potomac | Union Army20,21

  • Commander: Colonel Matthew R. McClennan (January & February 1865, definitely January 6)22,23,24
  • Unit Strength:
  • Weapons:

Ninth Offensive Order of Battle: Second Brigade | Third Division | VI Corps | Army of the Potomac | Union Army25,26

  • Commander: Colonel Matthew R. McClennan (March 31, 1865)27
  • Unit Strength:
  • Weapons:

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles28:

  • Before Petersburg June 17-18.
  • Jerusalem Plank Road, Weldon Railroad, June 22-23.
  • Siege of Petersburg until July 6.
  • Moved to Baltimore, Md., July 6-8.
  • …away…
  • Moved to Washington, D.C., thence to Petersburg, Va., December.
  • Siege of Petersburg December, 1864, to April, 1865.
  • Fort Fisher, 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. 228
    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); 138th Pennsylvania Entry, Page 58; 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. 228
    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. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 138th Pennsylvania Entry, Page 58; 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 258
    11. 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 551
    12. 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 274
    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 XLII, Part 3 (Serial Number 89), page 1120: “Organization of the Union Forces” (December 31, 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 1120: “Organization of the Union Forces” (December 31, 1864)
    19. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
    20. 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)
    21. 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 744: “Organization of the Union Forces” (February 28, 1865)
    22. 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)
    23. 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 744: “Organization of the Union Forces” (February 28, 1865)
    24. “Army Correspondence.” The Bedford Inquirer (Bedford, PA), January 20, 1865, p.3, c.2: “Our gallant little Col. McClennan is again with us, commanding the Regiment; he having been absent sick for over a month. He is one of those men who always command the respect and admiration of his men, and will “when this cruel war is over,” receive all the honor due a brave and efficient officer, and a good soldier for the common cause of liberty and right.”
    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 572: “Organization of the Union Forces” (March 31, 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 588: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865”
    27. 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 572: “Organization of the Union Forces” (March 31, 1865)
    28. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
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