45th Ohio Infantry

Organized at Camp Chase, Columbus, Ohio, August 19, 1862. Ordered to Cynthiana, Ky., August 19; thence moved to Covington. Ky., and Defence of Cincinnati, Ohio, against threatened attack by Kirby Smith. Attached to 3rd Division, Army of Kentucky, Dept. of the Ohio. September and October, 1862. 1st Brigade, 2nd Division, Army of Kentucky, to January, 1863. District of Central Kentucky, Dept. of the Ohio, to June, 1863. 2nd Brigade, 1st Division, 23rd Army Corps, Dept. of the Ohio, to July, 1863. 2nd Brigade, 4th Division, 23rd Army Corps, to August, 1863. 1st Brigade, 4th Division, 23rd Army Corps, to October, 1863. 2nd Brigade, 4th Division, 23rd Army Corps, to December, 1863. 3rd Brigade, 1st Division Cavalry Corps, Dept. of the Ohio, to April, 1864. 2nd Brigade, 2nd Division, 23rd Army Corps, to June, 1864. 1st Brigade, 2nd Division, 23rd Army Corps, June, 1864. 2nd Brigade, 1st Division, 4th Army Corps, Army of the Cumberland, to June, 1865.

SERVICE. – Duty at Lexington, Ky., October, 1862, to January, 1863. Moved to Danville, Ky., January 25, and duty there till March. Operations in Central Kentucky against Cluke's forces February 18-March 5. Regiment mounted at Danville and Brigaded with 7th Ohio and 10th Kentucky Cavalry. Operations against Pegram March 22-April 1. Action at Dutton's Hill, near Somerset, March 30. Expedition to Monticello and operations in Southeastern Kentucky April 26-May 12. Monticello May 1. Skirmishes about Monticello April 28-May 2. Waitsborough June 6. Monticello and Rocky Gap June 9. West Farm June 9. Operations against Morgan July 2-26. Columbia July 3. Buffington Island, Ohio. July 19. Cheshire and Coal Hill July 20. Operations in Eastern Kentucky against Scott's forces July 25-August 6. Burnside's Campaign in East Tennessee August 16-October 17. Winter's Gap August 31. Near Sweetwater September 6. Athens, Calhoun and Charleston September 25. Near Philadelphia October 15. Philadelphia October 20. Jones' Hill October 26-27. Knoxville Campaign November 4-December 23. Marysville November 14. Rockford November 14. Stock Creek November 15. Holston River November 15. Near Knoxville November 16. Skirmishes about Kingston November 16-23. Siege of Knoxville November 17-December 5. Skirmishes at and near Bean's Station December 9-15. Russellsville December 10. Bean's Station December 10-14-15. Rutledge December 16. Blain's Cross Roads December 16-19. Operations about Dandridge January 26-28, 1864. Near Fair Garden January 27. At Cumberland Gap till February 8. At Mt. Sterling, Ky., till April 6, when dismounted. March to Knoxville, thence moved to Cleveland, Tenn., April 6-May 5. Atlanta (Ga.) Campaign May to September. Demonstrations on Dalton May 9-13. Battle of Resaca May 14-15. Advance on Dallas May 18-25. 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 Mountains June 10-July 2. Pine Hill June 11-14. Lost Mountain June 15-17. Muddy Creek June 17. Noyes' Creek June 19. Kolb's Farm June 23. Assault on Kenesaw June 27. Ruff's Station 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. Moved to Pulaski, Tenn., 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. Operations in East Tennessee March 15-April 22. At Nashville, Tenn., till June. Mustered out June 12, 1865. Recruits transferred to 51st Ohio Infantry.

Regiment lost during service 5 Officers and 58 Enlisted men killed and mortally wounded and 1 Officer and 275 Enlisted men by disease. Total 339.

SOURCE: Frederick H. Dyer, A Compendium of the War of the Rebellion, Part 3, p. 1517-8