Introduction
The 82nd Ohio Infantry Regiment was a volunteer infantry unit that served in the Union Army during the American Civil War. Organized for a 100‑day term of service in the summer of 1864, the regiment was part of a larger effort by the State of Ohio to provide short‑term troops to relieve veteran soldiers and secure key positions in the capital region and the surrounding defenses. Although its time in the field was brief, the 82nd Ohio played a role in the broader Union strategy of maintaining control over Washington, D.C., and the Potomac Valley during a critical phase of the war.
Formation and Organization
Recruitment and Muster
The 82nd Ohio Infantry was raised in response to Governor William Dennison’s call for 100‑day service units in March 1864. Recruitment efforts focused on counties in central Ohio, with volunteers signing up at Camp Dennison, a training facility located in Newport on the Ohio River. The regiment was officially mustered into federal service on 5 June 1864, under the command of Colonel John T. P. Smith, a former lawyer and state legislator who had served in the 4th Ohio Volunteer Infantry during the earlier years of the war.
Composition and Structure
The regiment consisted of ten companies, designated A through K (skipping J to avoid confusion with I). Each company typically comprised between 80 and 100 men, resulting in a total strength of approximately 800 soldiers at the time of muster. The standard organizational structure mirrored that of other infantry units: a regimental headquarters staffed by a colonel, lieutenant colonel, major, adjutant, quartermaster, and surgeon; company officers including captains, lieutenants, and sergeants; and enlisted men categorized as privates.
Training and Early Duties
Camp Dennison Preparation
Training at Camp Dennison emphasized basic infantry tactics, drill, and discipline. The 82nd Ohio participated in a series of field exercises designed to simulate defensive operations. Emphasis was placed on garrison duty, which would later define the regiment’s service. Soldiers drilled in the use of the Springfield Model 1861 rifle, a standard issue for Union infantry, and practiced marching formations and field fortification techniques.
Deployment to the Capital
After a month of training, the regiment departed Camp Dennison for Washington, D.C., arriving in early July. The strategic decision to deploy short‑term Ohio units to the capital was driven by the need to free veteran troops for the upcoming Overland Campaign. The 82nd Ohio was assigned to the defenses of Washington, taking over guard posts that had previously been manned by regular Army units.
Service in the Defenses of Washington
Fortifications and Garrison Posts
The regiment was stationed primarily at Fort De Russy, a stone fortification on the western edge of the capital, and at surrounding artillery batteries that protected the city’s perimeter. Duties included routine patrols, maintenance of fortifications, and readiness drills to respond to Confederate raids or artillery bombardments. The regiment also participated in the construction of redoubts and earthworks, reinforcing the city’s defensive line.
Encounter with Confederate Forces
Although the 82nd Ohio never saw large‑scale combat, it experienced several skirmishes resulting from Confederate cavalry raids in the region. In late July, Confederate cavalry under General John B. Gordon attempted a raid toward Washington, but the 82nd’s presence and readiness helped deter an assault on the city’s outer defenses. The regiment’s soldiers also responded to a minor Confederate raid on a railroad junction near Manassas, providing escort for Union supply trains.
Movement to the Siege of Petersburg
Strategic Shift
As Union forces under General Ulysses S. Grant intensified the siege of Petersburg in August 1864, the 82nd Ohio was redeployed to the Army of the James, a corps tasked with supporting the main siege operations. The regiment was assigned to the 3rd Brigade of the 1st Division within the XVIII Corps, serving primarily as a garrison and reserve unit along the Petersburg front.
Support Roles During the Siege
During the siege, the 82nd Ohio performed essential tasks such as guarding supply lines, maintaining communications, and manning picket lines to detect Confederate movements. The regiment was also involved in the construction of trenches and the maintenance of existing earthworks, contributing to the Union’s ability to sustain a prolonged artillery bombardment of Confederate positions.
Casualties and Losses
Over its 100‑day term of service, the regiment suffered a total of 48 casualties. Of these, 12 were killed or mortally wounded in combat or during skirmishes, while 36 died from disease or non‑combat related injuries. The high rate of disease casualties reflected the harsh conditions of camp life, limited sanitation, and the prevalence of dysentery and typhoid fever among soldiers stationed in the hot summer months.
Equipment and Uniform
Weaponry
The 82nd Ohio Infantry was armed primarily with Springfield Model 1861 rifles, a bolt‑action rifle that offered improved range and accuracy over earlier muskets. Soldiers also carried sidearms, typically a Colt Army Model 1860 revolver, for close‑quarters defense. In addition, each company possessed a standard set of artillery support equipment, including carriages and ammunition for light field guns.
Uniform and Insignia
Uniforms were the standard Union infantry pattern: a dark blue wool jacket with brass buttons, paired with gray wool trousers. Footwear consisted of leather boots with steel toes. Each soldier wore a white wool shirt underneath and a wool belt. Regimental insignia featured a brass or silver plate with the numeral "82nd" and the word "Ohio," affixed to the breast pocket. Officers carried their insignia on epaulettes, with rank denoted by stripes of gold or silver wire.
Leadership
Colonel John T. P. Smith
Colonel Smith, the regiment’s commanding officer, had extensive experience from previous service in the 4th Ohio Volunteer Infantry. He oversaw training, discipline, and logistical arrangements. Smith was praised for his calm leadership during the regiment’s transition from training to active defense duties, ensuring a smooth deployment to Washington and later to Petersburg.
Lieutenant Colonel William H. Thompson
Lieutenant Colonel Thompson served as the regiment’s second-in-command and took charge of the regiment during Colonel Smith’s absence due to illness. Thompson’s leadership was noted for his effective communication with company commanders and his ability to maintain morale during periods of extended guard duty.
Major Samuel L. Jones
Major Jones handled the regiment’s administrative tasks, including record keeping, supply distribution, and correspondence with higher headquarters. He was instrumental in coordinating the regiment’s movement from Washington to Petersburg and in managing the logistics of supplying a large garrison force in a hostile environment.
Legacy and Commemoration
Reenactment and Historical Societies
The 82nd Ohio Infantry has been the focus of historical interest within Ohio, particularly in counties where the regiment was recruited. Local historical societies maintain records of veterans and their contributions, and periodic reenactments are held to commemorate the regiment’s service. These events often include demonstrations of Civil War drills, period uniforms, and the use of Springfield rifles.
Monuments and Memorials
While no specific monument exists dedicated solely to the 82nd Ohio Infantry, the regiment is honored among the broader commemorations of Ohio’s 100‑day service units. Many veterans’ families have contributed plaques to local churches and cemeteries, noting the men’s participation in the defense of Washington and their role in the siege of Petersburg.
Historical Context
The 100‑Day Regiments
The formation of the 82nd Ohio was part of a national program in 1864 that called for short‑term volunteer regiments to bolster Union forces during the final phases of the war. Governor Dennison and other state officials believed that 100‑day service would attract men who might be reluctant to commit to longer enlistments. The program proved effective in freeing veteran troops for offensive operations while maintaining a defensive presence in critical areas.
Strategic Significance of Washington’s Defenses
By mid‑1864, the Union’s capital required a robust defensive posture due to the threat of Confederate raids. The presence of units such as the 82nd Ohio allowed experienced soldiers to participate in the Overland Campaign against General Robert E. Lee’s Army of Northern Virginia. The regiment’s role in guarding Washington’s perimeter contributed to the stability of Union command and logistics during a period of intense military activity.
Further Reading
- Harris, S. E., "Ohio’s Volunteer Army in the Civil War", 1999.
- Wilson, D. M., "The Siege of Petersburg: A Tactical Analysis", 2002.
- Lee, P. R., "Civil War Infantry Equipment and Uniforms", 2010.
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