The regiment was attached to Cheat Mountain, District Western Virginia, to March 1862. Schenck's Brigade, Department of the Mountains, to June 1862. 2nd Brigade, 1st Division, I Corps, Army of Virginia, to September 1862. 2nd Brigade, 1st Division, XI Corps, Army of the Potomac, to October 1862. 2nd Brigade, 2nd Division, XI Corps, Army of the Potomac, to October 1863, and Army of the Cumberland, to April 1864. 3rd Brigade, 3rd Division, XX Corps, Army of the Cumberland, to July 1865.
The 73rd Ohio Infantry mustered out of service at Louisville, Kentucky, on July 20, 1865.
Detailed service
The 73rd OVI's detailed service is as follows (NOTE — Battles are Bolded, Italicized; campaigns are Italicized):
1862
Duty at Camp Logan until January 24, 1862.
Moved to Grafton, Va., then to Fetterman January 24–26
New Creek February 3.
Expedition to Romney, Va., February 6–7, 1862,
Moorefield February 12–16.
Moved to Clarksburg February 18, and duty there until March 20.
Moved to Weston, Va., March 20, and duty there until April 10.
Moved to Louisville, Ky., June and duty there until July.
Casualties
The regiment lost a total of 321 men during service; 4 officers and 167 enlisted men killed or mortally wounded, 1 officer and 149 enlisted men died of disease.[4]
George Nixon was the great grandfather of Richard Nixon and died from the wounds he received in the Battle of Gettysburg Pa. He is buried in the Ohio section of the National Cemetery.
Samuel R. Peters later served in the United States House from 1883 to 1891. He represented the 7th District in Kansas.
Archibald Lybrand Jr. later served as Mayor of Delaware, Ohio and the United States House from 1897 to 1901. He represented the 8th District in Ohio.
Hurst, Samuel H. Journal-History of the Seventy-Third Ohio Volunteer Infantry (Chillicothe, OH: S. H. Hurst), 1866.
Ohio Roster Commission (1888). 70th–86th Regiments—Infantry. Official Roster of the Soldiers of the State of Ohio in the War on the Rebellion, 1861–1865. Vol. VI. Akron, OH: The Werner Ptg. and Mfg. Co. p. 810. OCLC181357575.
Subcommittee on Veterans' Affairs, United States. Congress. Senate. Committee on Labor and Public Welfare (1968). Edward M Kennedy, Chairman (ed.). Medal of Honor, 1863-1968 : "In the Name of the Congress of the United States". Committee print (United States. Congress), 90th Congress, 2nd session. Washington DC: U.S. Government Printing Office. p. 1087. OCLC1049691780.