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15th Massachusetts Infantry

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Muster In: June 12, 18611
Muster Out: Left the front July 12. Mustered out July 28, 1864.2

Commander(s):
Lieutenant Colonel Isaac Harris Hooper
IsaacHarrisHooper15thMAImage13

Captain Henry T. Dudley
HenryTDudley15thMA4

First Offensive Order of Battle: First Brigade | Second Division | II Corps | Army of the Potomac | Union Army5

  • Commander: Lieutenant Colonel Isaac Harris Hooper?6
  • Unit Strength:
  • Weapons: Springfield Rifles (.58 caliber) (June 30, 1864)7
  • Note: First Company Andrew (Massachusetts) Sharpshooters attached until around July 12, 1864.

Second Offensive Order of Battle:

First Brigade | Second Division | II Corps | Army of the Potomac | Union Army (June 19-22, 1864) (mostly captured at the Battle of Jerusalem Plank Road June 22, 1864)8

Remnant of unit attached to the 20th Massachusetts (June 22-30, 1864)9

  • Commander: Lieutenant Colonel Isaac Harris Hooper (wounded on June 21?, 1864)10
  • Unit Strength: ~75 officers and men PFD (June 22, 1864)11
  • Weapons: Springfield Rifles (.58 caliber) (June 30, 1864)12
  • Note: Most of the 15th Massachusetts was captured on June 22, 1864 at the Battle of Jerusalem Plank Road along with their colors.13
  • Note: First Company Andrew (Massachusetts) Sharpshooters attached until around July 12, 1864.14

Third Offensive Order of Battle: First Brigade | Second Division | II Corps | Army of the Potomac | Union Army (July 1-27, 1864)15,16

  • Commander: Captain Henry T. Dudley (July 31, 1864)17
  • Unit Strength:
  • Weapons:
  • Note: Left the front July 12. Mustered out July 28, 1864. Veterans and Recruits transferred to 20th Massachusetts on July 27, 1864.18,19
  • Note: First Company Andrew (Massachusetts) Sharpshooters attached to the 15th MA until around July 12, 1864 and appear to have then become attached to the 19th Massachusetts, an arrangement which lasted until their muster out on September 6, 1864.20
  • The 15th Massachusetts had only two (2 cos.) present in July 1864.21

Fourth Offensive Order of Battle:

  • No longer a separate organization.22

Fifth Offensive Order of Battle:

  • No longer a separate organization.23

Sixth Offensive Order of Battle:

  • No longer a separate organization.24

Seventh Offensive Order of Battle:

  • No longer a separate organization.25

Eighth Offensive Order of Battle:

  • No longer a separate organization.26

Ninth Offensive Order of Battle:

  • No longer a separate organization.27

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

  • Before Petersburg June 16-18.
  • Siege of Petersburg June 16-July 12.
  • Jerusalem Plank Road June 22-23.
  • Left the front July 12.
  • Mustered out July 28, 1864.
  • Veterans and Recruits transferred to 20th Massachusetts.

Bibliography:

Siege of Petersburg Documents Which Mention This Unit:

Links:

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. Isaac Harris Hooper image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 96, Page 4922.  United States Army Heritage and Education Center, Carlisle, PA. ↩
  4. Henry T. Dudley image.  MOLLUS-Mass Civil War Photograph Collection, Vol. 96, Page 4923.  United States Army Heritage and Education Center, Carlisle, PA. ↩
  5. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 1 (Serial Number 80), pages 219-221 ↩
  6. Ford, Andrew E. The Story of the Fifteenth Regiment Massachusetts Volunteer Infantry in the Civil War 1861-1864 (W. J. Coulter Press, 1898).  pp. 333–334: The regiment saw very little fighting until the June 22, 1864 disaster at Jerusalem Plank Road.  If Harris was in command on June 21-22, he was probably also in command from June 15-18, 1864, although I cannot prove it at this point.  More research is necessary. ↩
  7. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 15th Massachusetts Entry, Page 84; 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. ↩
  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), pages 219-221 ↩
  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. 543: This source only shows that the 15th Massachusetts was no longer an independent unit. I need another source showing me the remnant of the 15th MA and the Andrew MA Sharpshooters were attached to the 20th MA in late June 1864. ↩
  10. Ford, Andrew E. The Story of the Fifteenth Regiment Massachusetts Volunteer Infantry in the Civil War 1861-1864 (W. J. Coulter Press, 1898).  p. 334. ↩
  11. Annual Report of the Adjutant-General, of the Commonwealth of Massachusetts…For the Year Ending December 31, 1864 (Boston: Wright & Potter, State Printers, No. 4 Spring Lane, 1865), p. 484: “On the 22d of June, the regiment, dwindled down to five officers and about seventy muskets, confronted the enemy near the Jerusalem plank road, before Petersburg.” ↩
  12. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 15th Massachusetts Entry, Page 84; 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. ↩
  13. Ford, Andrew E. The Story of the Fifteenth Regiment Massachusetts Volunteer Infantry in the Civil War 1861-1864 (W. J. Coulter Press, 1898).  p. 334. ↩
  14. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  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 252 ↩
  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. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  19. 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 252 ↩
  20. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3): 15th Ma and 19th MA Entries ↩
  21. 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 252 ↩
  22. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  23. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  24. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩
  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) ↩
  28. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3) ↩

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