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Note: Only six companies of the 15th Maine,  (Cos. A, C, D, F, G, K), under Colonel Isaac Dyer, were ever located at the Siege of Petersburg.  The other 4 companies (Cos. B, E, H, I) under Lieutenant Colonel Murray were with the portion of the XIX Corps which defended Washington, D.C. and pursued Early’s forces.

Muster In: Organized at Augusta December 6-31, 1861, and mustered in January 23, 1862.1
Muster Out: Mustered out July 5, 1866.2

Commander(s):
Colonel Isaac Dyer?
Commander Image

Commander 2
Commander Image

Commander 3
Commander Image

First Offensive Order of Battle:

Second Offensive Order of Battle:

Third Offensive Order of Battle: Second Brigade | First Division | XIX Corps | Union Army (July 18-27, 1864)7,8,9

  • Commander: Colonel Isaac Dyer (July 18, 1864)(also mentioned as being in command of portion of 2/1/XIX that was at Bermuda Hundred, at least on July 26. Brigade commander McMillan was present at Bermuda Hundred on July 26 also, but apparently wasn’t in command in the field.)10,11,12
  • Unit Strength:
  • Weapons:
  • Note: A detachment of the 15th Maine, composed of six companies (Cos. A, C, D, F, G, K), 13,14,15,16

Fourth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.17

Fifth Offensive Order of Battle:

Sixth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.20

Seventh Offensive Order of Battle:

  • Not present at the Siege of Petersburg.21

Eighth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.22

Ninth Offensive Order of Battle:

  • Not present at the Siege of Petersburg.23

Dyer’s/Sifakis’ Compendium Info:
Siege of Petersburg Battles24:

  • Cos. A, C, D, F, G, K took the steamer Exact, leaving New Orleans on July 5.25
  • Moved to Fort Monroe, thence to Bermuda Hundred, Va., July 1-17 (6 Cos.).
  • Arrived at Fort Monroe at midnight on the night of July 16-17.26
  • Arrived at Bermuda Hundred on the afternoon of July 18.27,28
  • Left Bermuda Hundred on July 27.29
  • Duty in trenches at Bermuda Hundred until July 28. [Dyer appears to be incorrect.]
  • Deep Bottom July 28-30. [Dyer appears to be incorrect.]
  • Moved to Washington, D.C., thence to Monocacy, Md.
  • (4 Cos., under Murray and Drew, moved from Morganza to Washington, D.C., July 1-12. Pursuit of Early July 14-24. Rejoin Regiment at Monocacy, Md., August 4.)

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. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      4. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 15th Maine Entry, Page 77; 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.
      5. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      6. Volume 13 (Ordnance Returns for the Second Quarter, April-June, 1864); 15th Maine Entry, Page 77; 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. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      8. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), p. 312: This portion of the 15th Maine arrived at Bermuda Hundred on July 18, 1864.
      9. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), pp. 127-131, 136
      10. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 127
      11. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), p. 312: Dyer was in command on July 18, 1864
      12. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), p. 491
      13. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      14. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 127
      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), p. 312
      16. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 136: This detachment left Bermuda Hundred on July 27, 1864, per the regimental history.  Dyer appears to be incorrect here because this entire brigade was ordered away and left July 27, 1864.
      17. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      18. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      19. Volume 15 (Ordnance Returns for the Third Quarter, July-September, 1864); 15th Maine Entry, Page 71; 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.
      20. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      21. A Compendium of the War of the Rebellion by Frederick H. Dyer (Part 3)
      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. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 127
      26. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 128
      27. The War of the Rebellion: A Compilation of the Official Records of the Union and Confederate Armies, Volume XL, Part 3 (Serial Number 82), p. 312
      28. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 129
      29. Shorey, Henry A. The Story of the Maine Fifteenth… (Bridgton News: 1890), page 136

      ***



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