Overview
The 197th Pennsylvania Infantry (One Hundred Days’ Service) was an infantry regiment organized in Pennsylvania during the summer of 1864 for Union service in the American Civil War. Known as the 3rd Coal Exchange Regiment, it was mustered in at Camp Cadwalader, Philadelphia, between July 14 and July 22, 1864. The regiment served the Union in the Eastern theater and was primarily tasked with guard duty during its brief period of service.
This regiment was composed of officers and men with prior military experience, reflecting the urgency and demands of the 100 days’ enlistment period in 1864.
Organization & Service
The 197th Pennsylvania Infantry was organized at Camp Cadwalader, Philadelphia, and mustered into United States service for a term of 100 days between July 14 and July 22, 1864. Colonel John R. Haslett commanded the regiment, with Lieutenant Colonel Charles D. Kenworthy and Major John Woodcock as principal field officers. Many of the officers and men had previously served in other units.
Shortly after organization, the regiment moved to Camp Bradford, Baltimore, Maryland. After a brief period, it was ordered to Rock Island, Illinois, where it was assigned to guard duty over Confederate prisoners of war. The regiment remained at Rock Island for the duration of its service, performing duties related to the security and management of the prison camp. The 197th Pennsylvania Infantry was mustered out of service at Philadelphia on November 11, 1864.
Research This Regiment Further
If you’d like to explore this unit’s history in more depth, regimental histories and Civil War reference works offer valuable detail.
Engagements & Campaigns
- Guard duty at Camp Bradford, Baltimore, Maryland (July–August 1864)
- Guard duty at Rock Island Prison, Illinois (August–November 1864)
Casualties
Specific casualty figures for the 197th Pennsylvania Infantry (One Hundred Days’ Service) are not detailed in primary sources. The regiment’s service was limited to guard duty, and it did not participate in combat operations.
Field Officers & Commanders
- Colonel John R. Haslett
- Lieutenant Colonel Charles D. Kenworthy
- Major John Woodcock
Regimental Roster
The full roster of the 197th Pennsylvania Infantry (One Hundred Days’ Service), including officers and enlisted men, is available for genealogical and historical research. This roster provides names, ranks, and additional service details where available.
To view the complete roster, visit the 197th Pennsylvania Infantry (One Hundred Days’ Service) Roster page.
Sources & References
- Official Records of the Union and Confederate Armies, Series I
- Pennsylvania Adjutant General’s Report
- Dyer, Frederick H., Compendium of the War of the Rebellion
- The Union Army, Federal Publishing Company, 1908, Vol. 1