Near Lee and Gordon’s Mill on Sept. 18, 1863, these artillerymen fired some of the opening shots at Chickamauga. During the Confederate breakthrough two days later, Brig. Gen. Bushrod Johnson secured their services, placing three guns near the northwest corner of Dyer Field about 1:00 P.M. Soon the battery followed Johnson’s men over Vittetoe Road, four cannon accompanying Fulton’s Brigade, the remaining two going into action with Gregg’s. Dent’s Napoleons supported these brigades in the struggle for Snodgrass Hill which lasted until dusk. “I cannot here speak too highly of the gallantry of the men and officers of Dent’s and Everett’s batteries,” reported General Johnson. Their guns were “gallantly served amid a shower of the enemy’s bullets.” Col. John S. Fulton also noted Dent and his gunners, “whose fire upon the enemy was incessant and effective, both officers and men behaving most coolly and gallantly during the day.” The battery expended three hundred rounds of ammunition on Sept. 20th, losing three killed and thirteen wounded in the process.