Woodford County's volunteers — and later on conscripts — were dispersed among a wide range of units, making a universal summary of their wartime experience impossible. Some units composed largely of residents of Woodford County, including Company G of the 17th Illinois Volunteer Infantry Regiment, mustered at Peoria May 25, 1861, and fought at the Battle of Shiloh in Hardin County, Tennessee in April 1862. Several Woodford County men were among the 130 members of the 17th Infantry killed and wounded in the two-day battle. This unit also participated in the last phase of the 1863 Siege of Vicksburg in Warren County, Mississippi, a protracted battle which led to the surrender of over 29,000 Confederate troops.