By the Office of the Adjutant General. 9369 total pages. 12 Volumes 1886-1895. 

Volume 1 - 1st-22nd Regiments Olio Volunteer Infantry; 6th, 8th, and 11th Regiments Reserve Infantry; Jones Independent Battalion Ohio Volunteer Infantry; Wallace Guards, Dennison Guards, and Trumbull Guards; Departmental Corps Ohio Volunteer Infantry; 1st-10th Independent Companies of Sharpshooters; 5th and 27th Regiments US Colored Troops; Unassigned Recruits, US Colored Troops; 4th and 11th Battalion Ohio Volunteer Infantry; 1st Ohio Volunteer Light Artillery; Cotter and Williams Independent Batteries Ohio Volunteer Light Artillery; 2nd Independent Battalion Cavalry; Bard's Independent Company Cavalry; H W Burdsall and John S George's Independent Companies Cavalry; Roll of Honor

Volume 2 - 1st-20th Regiments-Infantry

Volume 3 - 21st-36th Regiments-Infantry

Volume 4 - 37th-53rd Regiments-Infantry

Volume 5 - 54th-69th Regiments-Infantry

Volume 6 - 70th-86th Regiments-Infantry

Volume 7 - 87th-108th Regiments-Infantry

Volume 8 - 110th-140th Regiments-Infantry

Volume 9 - 141st-184th Regiments-Infantry

Volume 10 - 185th-198th Regiments Infantry; 1st and 2nd Regiments Heavy Artillery; 1st Regiment Light Artillery, and Independent Batteries Light Artillery

Volume 11 - 1st-13th Regiments Ohio Volunteer Cavalry; 4th and 5th Independent Battalions of Cavalry; 3rd and 4th Independent Companies of Cavalry; McLaughlin's Squadron of Cavalry; Merrill's Horse or 2nd Missouri Cavalry; Union Light Guard, and Harlin's Light Cavalry, or Company M; 11th Pennsylvania Cavalry

Volume 12 - United States Navy (Ohio Enlistments); 5th Independent Company Ohio Volunteer Cavalry; 6th Independent Company Ohio Volunteer Cavalry; 2nd Regiment Ohio Volunteer Reserve Militia; 1st Regiment US Veteran Volunteer Engineers; 1st, 2nd, 4th, 5th, 6th, 8th, and 9th Regiments US Veteran Volunteer Infantry (Part); 1st 2nd and 3rd Brigade Bands (Part); 1st and 2nd Regiments Kentucky Infantry; 1st and 2nd Regiments West Virginia Cavalry; Company H, 5th West Virginia Cavalry; 4th Regiment West Virginia Infantry; 5th, 7th, and 9th Regiments West Virginia Infantry (Ohio Veteran Credits); 1st-5th Regiments Ohio Volunteer Infantry (Mexican); Independent Companies Ohio Volunteer Infantry (Mexican); 15th Regiment US Infantry Companies B, C, D, H, and I (Mexican); Captain Sanderson's Company Mounted Riflemen (Mexican); Roll of Honor; Addenda to Roll of Honor, Volumes 1-11 Inclusive; Errata and Addenda to Volumes 1-11 Inclusive