The regiment was also known as the 1st West Tennessee Cavalry; and was sometimes referred to as Hurst's Worst by their opponents.
The regiment was attached to District of Jackson, Department of the Tennessee, to November 1862.
District of Jackson, XIII Corps, Department of the Tennessee, to December 1862.
Cavalry Brigade, District of Jackson, XVI Corps, to March 1863.
Cavalry Brigade, 3rd Division, XVI Corps, to June 1863.
2nd Brigade, 1st Cavalry Division, XVI Corps, to December 1863.
1st Brigade, 1st Cavalry Division, XVI Corps, to June 1864.
Breckenridge's diary, as well as other official sources, showed that while Breckenridge was working to equip the unit, Hurst was arrested for arson after burning homes of political and wartime opponents.
[1] From the fall of 1862 through his death in October 1863, it seems apparent from existing sources that Breckenridge was the most active of the two commanders in actually leading the unit.
Hurst's entire career with the unit was mired in controversy and intrigue.
While he cited ill health as the reason, his resignation came after a humiliating defeat at the battle of Bolivar, Tennessee and after many instances of insubordination to more senior Union Army officers.
Operations in northern Mississippi and western Tennessee against Chalmers 4–17 October.
Operations on Memphis & Charleston Railroad against Lee's attack 28 November-10 December.
Operations in northern Mississippi and western Tennessee 18–31 December.
At Edgefield and Pulaski and in District of Middle Tennessee until August, 1865.