84th Illinois Infantry

Organized at Quincy, Ill., and mustered in September 1, 1862. Left State for Louisville, Ky., September 23. Attached to 10th Brigade, 4th Division, 2nd Army Corps, Army of the Ohio, to November, 1862. 3rd Brigade, 2nd Division, Left Wing 14th Army Corps, Army of the Cumberland, to January, 1863. 3rd Brigade, 2nd Division, 21st Army Corps, Army of the Cumberland, to October, 1863. 3rd Brigade, 1st Division, 4th Army Corps, to May, 1865. 2nd Brigade, 1st Division, 4th Army Corps, to June, 1865.

SERVICE. – Pursuit of Bragg into Kentucky October 1-16, 1862. Battle of Perryville, Ky., October 8. Pursuit to Loudon October 10-22. March to Nashville, Tenn., October 22-November 7. Duty at Nashville till December 26. Advance on Murfreesboro, Tenn., December 26-30. Battle of Stone's River December 30-31, 1862, and January 1-3, 1863. At Murfreesboro till June. Woodbury January 24. Middle Tennessee (or Tullahoma) Campaign June 24-July 7. Occupation of Middle Tennessee till August 16. Passage of Cumberland Mountains and Tennessee River and Chiickamauga (Ga.) Campaign August 16-September 22. Reconnoissance from Rossville September 17. Ringgold, Ga., September 17. Battle of Chickamauga, Ga., Septeraber 19-20. Siege of Chattanooga, Tenn., September 24-November 23. Chattanooga-Ringgold Campaign November 23-27. Lookout Mountain November 23-24. Mission Ridge November 25. Pursuit to Ringgold, Ga., November 26-27. Ringgold Gap, Taylor's Ridge, November 27. March to relief of Knoxville November 28-December 17. At Whiteside, Tyner's Station and Blue Springs till May, 1864. Demonstration on Dalton, Ga., February 22-27, 1864. Near Dalton February 23. Tunnel Hill, Buzzard's Roost Gap, and Rocky Faced Ridge February 23-25. Atlanta (Ga.) Campaign May to September. Tunnel Hill May 6-7. Demonstration on Rocky Faced Ridge May 8-11. Buzzard's Roost Gap May 8-9. Demonstration on Dalton May 9-13. Battle of Resaca May 14-15. Kingston May 18-19. Near Cassville May 19. Advance on Dallas May 22-25. Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Mills May 25-June 5. Operations about Marietta and against Kenesaw Mountain June 10-July 2. Pine Hill June 11-14. Lost Mountain June 15-17. Assault on Kenesaw June 27. Ruff's Station, Smyrna Camp Ground, July 4. Chattahoochie River July 5-17. Peach Tree Creek July 19-20. Siege of Atlanta July 22-August 25. Flank movement on Jonesboro August 25-30. Battle of Jonesboro August 31-September 1. LoveJoy Station September 2-6. Operations against Hood in North Georgia and North Alabama September 29-November 3. Nashville Campaign November-December. Columbia, Duck River, November 24-27. Battle of Franklin November 30. Battle of Nashville December 15-16. Pursuit of Hood to the Tennessee River December 17-28. Moved to Huntsville, Ala., and duty there till March, 1865. Expedition to Bull's Gap and operations in East Tennessee March 15-April 22. Moved to Nashville, Tenn., and duty there till June. Mustered out at Nashville, Tenn., June 8, and discharged June 16, 1865.

Regiment lost during service 4 Officers and 120 Enlisted men killed and mortally wounded and 1 Officer and 144 Enlisted men by disease. Total 269.

SOURCE: Frederick H. Dyer, A Compendium of the War of the Rebellion, Part 3, p. 1082