From FOX'S REGIMENTAL LOSSES Chapter X., pg. 346

Organized at Indianapolis, Ind., and mustered in September 12, 1861. Left State for Washington, D.C., September 15. Attached to Stile's Brigade, Banks' Division, Army of the Potomac, to March, 1862. 3rd Brigade, 1st Division, Banks' 5th Army Corps, to April, 1862, and Dept. of the Shenandoah to June, 1862. 3rd Brigade, 1st Division, 2nd Corps, Army of Virginia, to September, 1862. 3rd Brigade, 1st Division, 12th Army Corps, Army of the Potomac, to October, 1863, and Army of the Cumberland to April, 1864. 2nd Brigade, 1st Division, 20th Army Corps, Army of the Cumberland, to November, 1864.

SERVICE.--Operations in District of the Upper Potomac and camp at Frederick City, Md., till March, 1862. Movement into the Shenandoah Valley, Va., and occupation of Winchester, Va., March 3-9. Smithfield March 13. Advance toward Manassas March 23-25. Pursuit of Jackson up the Shenandoah Valley. Operations in the Shenandoah Valley May 15-June 17. Buckton Station, Middletown and Front Royal May 23. Newtown May 24. Battle of Winchester May 25. Retreat to Williamsport, Md., May 25-26. Duty at Front Royal till July 6, and at Little Washington till August 6. Battle of Cedar Mountain August 9. Pope's Campaign in Northern Virginia August 16-September 2. Guard trains of the army during battles of Bull Run August 28-30. Maryland Campaign September 6-22. Battle of Antietam September 16-17. Moved to Harper's Ferry, W. Va. Picket duty from Harper's Ferry to Opequan Creek and duty at Fairfax Station and Stafford Court House till December. March to Fredericksburg, Va., December 12-16. Burnside's 2nd Campaign, "Mud March," January 20-24, 1863. At Stafford Court House till April 27. Chancellorsville Campaign April 27-May 6. Germania Ford April 29. Battle of Chancellorsville May 2-5. Gettysburg, Pa., Campaign, June 11-July 24. Battle of Gettysburg July 1-3. Pursuit of Lee, to Manassas Gap, Va., July 5-24, On detached duty in New York during draft disturbances August 15-September 5. Movement to Bridgeport, Ala., September 24-October 3. Guarding Nashville and Chattanooga Railroad at Elkwater Bridge and Tullahoma, Tenn., till April, 1864. Regiment Veteranize at Tullahoma, Tenn., January 24, 1864. Atlanta (Ga.) Campaign May 1 to September 8. Demonstration on Rocky Faced Ridge May 8-11. Battle of Resaca May 14-15. Near Cassville May 19. New Hope Church May 25. Operations on line of Pumpkin Vine Creek and battles about Dallas, New Hope Church and Allatoona Hills, 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. Gilgal or Golgotha Church June 15. Muddy Creek June 17. Noyes Creek June 19. Kolb's Farm June 22. 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 25-August 25. Operations at Chattahoochie River Bridge August 26-September 2. Occupation of Atlanta September 2-November 4. Mustered out November 4, 1864. Veterans and Recruits transferred to 70th Indiana Infantry.

Regiment lost during service 10 Officers and 159 Enlisted men killed and mortally wounded and 2 Officers and 131 Enlisted men by disease. Total 302.

(From Dyer's Compendium of the Civil War, pg. 1130)

NOTES: Silas Colgrove was the typical "old-fashioned Colonel" of the American Army. At times, brave and courageous to a fault; at others, careful and judicious to an admirable degree. He was always kind and cheerful to his men, winning not only their admiration and respect, but their love and confidence. His staunch, soldierly virtues were largely reflected in his men, making the Twenty-seventh a reliable and hard fighting regiment. That it faced unflinchingly the musketry of many fields is clearly indicated in its extraordinary percentage of loss. It left the State September 15, 1861, and soon after its arrival at Washington was assigned to Banks's command. It wintered near Frederick, Md., and in the spring participated in Banks's Shenandoah campaign. After that, its history is identical with that of the Twelfth Corps and Williams's Division.

Its casualties in battle were severe, especially in proportion to its numbers. It lost at Cedar Mountain 15 killed, 29 wounded, and 6 missing; at Antietam, 18 killed, 191 wounded, no missing; at Chancellorsville, 20 killed, 126 wounded, and 4 missing; at Gettysburg, 23 killed, 86 wounded; and 1 missing At Resaca, Ga. The regiment captured the colors and the Colonel of the 38th Alabama, together with a large number of prisoners. Colgrove handling his men well in this fight, the loss not exceeding 68 killed and wounded, while it inflicted five times that on the enemy. In 1864 the designation of the Corps was changed to the Twentieth, although the old badges and division commanders were retained. The regiment served in the Twentieth Corps in the Atlanta campaign, after which, its term having expired, it was mustered out.

O = Officers	K = Killed and died of wounds.
M = Men	D = Died of disease, accidents, in prison, &c.
T = Total	E = Total Enrollment with later recruits

161 killed in combat = 14 per cent.

Total number of men killed and wounded, 706 = 61 per cent.

Died in Confederate prisons (previously included), 12.

Other Battles present in but no deaths: Front Royal, Va.; Cassville, Ga., Dallas, Ga.; Lost Mountain, Ga.; Kenesaw, Ga (Kolb's Farm).

(From FOX'S REGIMENTAL LOSSES Chapter X., pg. 346, with revised numbers from independent research and Wilbur Jones statistics from GIANTS IN THE CORNFILED, Appendix B. Page 243. Figures that differ from Fox and Jones are based upon my own research.)

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