90th Illinois Infantry

Organized at Chicago, Ill., and mustered in September 7, 1862. Engaged in guard duty at Camp Douglass, Chicago, Ill., till November 27, 1862. Moved to Cairo, Ill., thence to Columbus, Ky., and LaGrange, Tenn., November 27-December 2. Attached to R. R. Guard, 13th Army Corps (Old), Dept, of the Tennessee, to January, 1863. 3rd Brigade, 1st Division, 16th Army Corps, Dept. of the Tennessee, to March, 1863. 1st Brigade, 1st Division, 16th Army Corps, to July, 1863. 1st Brigade, 4th Division, 15th Army Corps, to September, 1864. 3rd Brigade, 2nd Division, 15th Army Corps, to June, 1865.

SERVICE.---Grant's Central Mississippi Campaign December 5, 1862, to January 10, 1863. Guard bridges at Coldwater. Action at Holly Springs and Coldwater December 20, 1862. Duty at LaGrange and LaFayette, on Memphis & Charleston R. R., till June, 1863. Moved to Memphis, Tenn., thence to Vicksburg, Miss., June 7-17. Siege of Vicksburg June 17-July 4. Advance on Jackson July 4-10. Siege of Jackson, Miss., July 10-17. At Big Black till September 27. Movement to Memphis, Tenn., thence march to Chattanooga, Tenn., September 27-November 23. Operations on Memphis & Charleston R. R. in Alabama October 20-29. Chattanooga-Ringgold Campaign November 23-27, Tunnel Hill November 23-24. Mission Ridge November 25. Pursuit to Graysville November 26-27. March to relief of Knoxville, Tenn., November 28-December 17. At Scottsboro, Ala., till May, 1864. Atlanta (Ga.) Campaign May to September. Demonstrations on Resaca May 8-13. Battle of Resaca May 14-15. Near Kingston May 19-22. Advance on Dallas May 22-25. 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. Brush Mountain June 15. Assault on Kenesaw June 27. Nickajack Creek July 2-5. Chattahoochee River July 5-17. Battle of Atlanta July 22. Siege of Atlanta July 22-August 25. Ezra Chapel, Hood's second sortie, July 28. 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. Rome and Gadsden October 4. Reconnoissance on Cave Springs Road and skirmishes October 12-13. Reconnoissance from Gaylesville, Ala., to Turkeytown October 25. March to the sea November 15-December 10. Jenks' Bridge, Ogeechee River, December 7. Near Bryant's Court House December 8. Siege of Savannah December 10-21. Assault and capture of Fort McAllister December 13. Campaign of the Carolinas January to April, 1865. Salkehatchie Swamps, S. C., February 2-5. South Edisto River February 9. North Edisto River February 12-13. Columbia February 15-17. Battle of Bentonville, N. C., March 20-21. Occupation of Goldsboro March 24. Advance on Raleigh April 10-14. Occupation of Raleigh April 14. Bennett's House April 26. Surrender of Johnston and his army. March to Washington, D.C., via Richmond, Va., April 29-May 19. Mustered out June 10, 1865,

Regiment lost during service 2 Officers and 58 Enlisted men killed and mortally wounded and 1 Officer and 87 Enlisted men by disease. Total 148.

SOURCE: Frederick H. Dyer, A Compendium of the War of the Rebellion, Part 3, p. 1084-5