WE CAN, WE WILL !
US CAVALRY FULL DRESS UNIFORM
Sgt. Major of Cavalry (left) and Private of Cavalry (right) taken from the U.S. Army clothing regulations of 1882
US ARMY UNIFORMS (NY Herald dated May 8, 1898)
While the NY Herald published these as Spanish-American War uniforms, they are actually Indian Wars period.
Note that the Summer Helmet was not worn in Arizona, as it made the soldier too good a target for sharpshooters.