United States 12th Infantry (Union)
United States of America
Companies
United States 12th Infantry, Company A (Union)
United States 12th Infantry, Company B (Union)
United States 12th Infantry, Company C (Union)
United States 12th Infantry, Company D (Union)
United States 12th Infantry, Company E (Union)
United States 12th Infantry, Company F (Union)
United States 12th Infantry, Company F&S (Union)
United States 12th Infantry, Company G (Union)
United States 12th Infantry, Company H (Union)
United States 12th Infantry, Company I (Union)
United States 12th Infantry, Company K (Union)
Field Officers
Brigadier General George Sykes
Brigadier General Romeyn B. Ayres
Colonel Hannibal Day
Colonel James G. Grindlay
Colonel Robert C. Buchanan
Captain Matthew M. Blunt
Captain Thomas S. Dunn
Lieutenant Colonel Robert C. Buchanan
Major General George Sykes
Major Richard S. Smith