Claim: There is one regiment under the command of Brig. Gen. Thomas H. Ruger and is known as the first cavalry led by Captain Myles Moylan.
Evidence: The force included five troops of the 1st Cavalry Regiment, one Company from the 3rd Infantry Regiment, and A Company from the 7th Cavalry Regiment under the command of Captain Myles Moylan, a veteran of the Battle of Little Bighorn and a recipient of the Medal of Honor for his actions during the Battle of Bear Paw. 
Command
Brig. Gen. Thomas H. Ruger 1st Cavalry 7th Cavalry
Captain Myles Moylan 9th Cavalry 3rd Infantry 7th Infantry