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4th Ohio Infantry

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Muster In: Organized June 4, 18611
Muster Out: Mustered out July 12, 18652

Commander(s):
Lt. Colonel Charles C. Calahan
Commander Image

Major Frank J. Spalter
Commander Image

Captain Sewell W. De Witt
Commander Image

Captain George C. Denniston
Commander Image

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

Second Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army8,9

  • Commander: Lieutenant Frank J. Spalter (June 30, 1864)10
  • Unit Strength:
  • Weapons: Springfield Rifles (.58 caliber) (June 30, 1864)11
  • Note: The 8th Ohio was ordered home for muster-out June 25, 1864; veterans and recruits assigned to 4th Ohio.12
  • Note: The 4th Ohio was a battalion of four (4) companies at this time.13,14

Third Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army15,16

  • Commander: Lieutenant Frank J. Spalter (July 31, 1864)17
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio had four (4) companies at this time.18

Fourth Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army19,20

  • Commander: Major Frank J. Spalter (August 31, 1864)21
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio had four (4) companies at this time.22,23

Fifth Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army24

  • Commander:
  • Unit Strength:
  • Weapons:

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

  • Commander: Captain Sewell W. De Witt (October 31, 1864)27
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio consisted of four (4) companies at this time.28,26

Seventh Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army30

  • Commander: Lieutenant Colonel Charles C. Calahan (December 31, 1864)31
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio consisted of four (4) companies at this time.32

Eighth Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army33,34,35

  • Commander:
    • Lieutenant Colonel Charles C. Calahan (January 31, 1865)36
    • Captain George C. Denniston (February 28, 1865)37
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio consisted of four (4) companies at this time.38,39,40
  • Note: This unit is listed in the casualty returns for the Battle of Hatcher’s Run, February 5-7, 1865, implying it was present during the Eighth Offensive and the battle.41

Ninth Offensive Order of Battle: Third Brigade | Second Division | II Corps | Army of the Potomac | Union Army42,43

  • Commander: Lieutenant Colonel Charles C. Calahan (March 31, 1865)44
  • Unit Strength:
  • Weapons:
  • Note: The 4th Ohio consisted of four (4) companies at this time.45,46

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles47:

  • Before Petersburg June 16-18.
  • Siege of Petersburg June 16, 1864, to April 2, 1865.
  • Old members mustered out June 21, 1864.
  • Consolidated to a Battalion June 26, 1864.
  • Jerusalem Plank Road, Weldon Railroad, June 22-23, 1864.
  • Demonstration north of James River July 27-29.
  • Deep Bottom July 27-28.
  • Demonstration north of James River August 13-20.
  • Strawberry Plains, Deep Bottom, August 14-18.
  • Ream’s Station August 25.
  • Boydton Plank Road, Hatcher’s Run, October 27-28.
  • Dabney’s Mills, Hatcher’s Run, February 5-7, 1865.
  • Watkins’ House March 25.
  • Appomattox Campaign March 28-April 9.
  • Boydton and White Oak Road March 29-31.
  • Crow’s House March 31.
  • Fall of Petersburg April 2.
  • Sailor’s Creek April 6.
  • High Bridge and Farmville April 7.
  • 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,. 221 ↩
    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. 544 ↩
    5. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 4th Ohio Entry, Page 14; 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,. 221 ↩
    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. 544 ↩
    8. 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,. 221 ↩
    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. 544 ↩
    10. 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. 544 ↩
    11. Volume 14 (Ordnance Returns for the Second Quarter, April-June, 1864); 4th Ohio Entry, Page 14; 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), p. 221 ↩
    13. 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,. 221 ↩
    14. 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. 544 ↩
    15. 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 253 ↩
    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 730 ↩
    17. 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 730 ↩
    18.  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 253 ↩
    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 613: “Organization of the Army of the Potomac…August 31, 1864” ↩
    20. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 1 (Serial Number 87), pages 118, 130: “Return of Casualties in the Union Forces (August 1864)” ↩
    21. 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 613: “Organization of the Army of the Potomac…August 31, 1864” ↩
    22.  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 613: “Organization of the Army of the Potomac…August 31, 1864” ↩
    23.  The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLII, Part 1 (Serial Number 87), pages 118, 130: “Return of Casualties in the Union Forces (August 1864)” ↩
    24. 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. 1298. ↩
    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 459: “Organization of the Union Forces” (October 31, 1864)” ↩
    26. 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 154: “Return of Casualties in the Union Forces…Boydton Plank Road, Va., October 27-28, 1864” ↩
    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 459: “Organization of the Union Forces” (October 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 459: “Organization of the Union Forces” (October 31, 1864)” ↩
    29. 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 154: “Return of Casualties in the Union Forces…Boydton Plank Road, Va., October 27-28, 1864” ↩
    30. 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 1116: “Organization of the Union Forces” (December 31, 1864) ↩
    31. 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 1116: “Organization of the Union Forces” (December 31, 1864) ↩
    32. 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 1116: “Organization of the Union Forces” (December 31, 1864) ↩
    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 326: “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 740: “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 96), page 64: “Return of Casualties in the Union forces at Hatcher’s Run (otherwise known as Dabney’s Mill, Armstrong’s Mill, Rowanty Creek, and Vaughan Road)… (February 5-7, 1865)” ↩
    36. 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 326: “Organization of the Union Forces” (January 31, 1865) ↩
    37. 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 740: “Organization of the Union Forces” (February 28, 1865) ↩
    38. 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 326: “Organization of the Union Forces” (January 31, 1865) ↩
    39. 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 740: “Organization of the Union Forces” (February 28, 1865) ↩
    40. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 1 (Serial Number 96), page 64: “Return of Casualties in the Union forces at Hatcher’s Run (otherwise known as Dabney’s Mill, Armstrong’s Mill, Rowanty Creek, and Vaughan Road)… (February 5-7, 1865)” ↩
    41. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XLVI, Part 1 (Serial Number 96), page 64: “Return of Casualties in the Union forces at Hatcher’s Run (otherwise known as Dabney’s Mill, Armstrong’s Mill, Rowanty Creek, and Vaughan Road)… (February 5-7, 1865)” ↩
    42. 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 567: “Organization of the Union Forces” (March 31, 1865) ↩
    43. 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 583: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865” ↩
    44. 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 567: “Organization of the Union Forces” (March 31, 1865) ↩
    45. 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 567: “Organization of the Union Forces” (March 31, 1865) ↩
    46. 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 583: “Return of casualties in the Union Forces commanded by Lieut. Gen. Ulysses S. Grant, March 29-April 9, 1865” ↩
    47. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩

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