Overview: 20th Infantry Regiment was organized during May and June, 1861, at Camp Trousdale, Tennessee, and in July contained 880 men. Its companies were raised in the counties of Davidson, Williamson, Rutherford, Sumner, Perry, Wayne, Humphreys, Hickman, Smith, Macon, and Wilson. It moved to Virginia, then Cumberland Gap, and later saw action at Fishing Creek, Shiloh, and Baton Rouge. After serving in the Vicksburg area, it was assigned to General Preston's, Bate's, Tyler's, and Palmer's Brigade, Army of Tennessee. The 20th fought with the army from Murfreesboro to Atlanta, returned to Tennessee with Hood, and was involved in the North Carolina Campaign. It had 505 effectives in September, 1861, suffered 110 casualties at Fishing Creek, and of the 400 engaged at Shiloh, forty-seven percent were disabled. The unit lost forty-eight percent of the 183 at Chickamauga, had few casualties at Missionary Ridge, and in December 1863, totalled 203 men and 123 arms. Only a handful surrendered on April 26, 1865. The field officers were Colonels Joel A. Battle, William M. Shy, and Thomas B. Smith; Lieutenant Colonels Mosco B. Carter, John S. Gooch, and Frank M. Lavender; and Majors Frederick Claybrooke, Patrick Duffy, John F. Guthrie, and Hency C. Lucas.