The 3rd Regiment, Tennessee Cavalry (Union) was organized at Murfreesboro and Nashville, Tenn., January 27, 1863. It served primarily in east Tenneseee against Forrest. It was decimated by disease and most of the men were captured in the fall of 1864. The regiment lost during service 2 Officers and 8 Enlisted men killed and mortally wounded and 4 Officers and 532 Enlisted men by disease. Total 546. Companies of the Tennessee 3rd Cavalry Regiment Co. "A." Mustered in at Covington, Kentucky, November 1862. Men from Knox and Blount Counties. Co. "B.." Mustered in at Murfreesboro, January 27, 1863. Co. "C." Mustered in at Murfreesboro, January 27, 1863. Co. "D." Mustered in at Murfreesboro, January 27, 1863. Co. "E." Mustered in at Murfreesboro, January 27, 1863. Co. "F." Mustered in at Nashville, August 31, 1863. Men from 3rd Congressional District. Co. "G." Mustered in at Nashville, August 31, 1863. Men from 3rd Congressional District. Co. "H." Mustered in at Nashville, November 12, 1863. Men from 3rd Congressional District. Co. "I." Mustered in at Nashville, December 14, 1863. Co. "K." Mustered in at Nashville, March 25, 1864. Co. "L." Mustered in at Nashville, June 17, 1864.