The 169th Ohio Infantry Regiment lost 41 enlisted men to disease during the Civil War.
|Organized at Camp Taylor, Cleveland, Ohio|
|May 13||Mustered in under Colonel Nathaniel Haynes|
|May 19||Left State for Washington, D. C. Attached to 1st Brigade, DeRussy’s Division, 22nd Army Corps.|
|July||Assigned to 2nd Brigade, DeRussy’s Division, 22nd Army Corps|
|July 11-12||Repulse of Early’s attack on Washington|
|August||Assigned to duty in the Defenses of Washington south of the Potomac as garrison at Fort Ethan Allen and in fortifications south of the Potomac.|
|September 4||Mustered out|