They were known as the Rough Riders.
"Rough Riders" was the nickname of the 1st United States Volunteer Cavalry Regiment.
Roosevelt
The First US Volunteer Cavalry Regiment (Rough Riders)
Roosevelts' Cavalry Regiment was nicknamed the "Rough Riders". Officially, it was the First US Volunteer Cavalry Regiment (Army).
The Rough Riders. Though they had no horses in Cuba
Former President Theodore Roosevelt was the Lieutenant-Colonel of the Rough Riders. This is the popular name of the First United States Volunteer Cavalry.
rough riders
The FIRST commander of the 1st US Volunteer Cavalry was Colonel Leonard Wood. When he became commander of the 2nd Cavalry Regiment, his second in command, Theodore Roosevelt became commander. Rough Riders was the nickname of the unit.
William Randolph Carter has written: 'History of the First regiment of Tennessee volunteer cavalry in the great war of the rebellion' -- subject(s): Accessible book, Tennessee Cavalry. 1st Regt., 1862-1865, History, Regimental histories, Tennessee Cavalry, 1st, Tennessee cavalry, Tennessee cavalry. 1st reg't, 1862-1865.
Theodore Roosevelt!
Billy Carson
Massachusetts; The 54th Massachusetts Volunteer Infantry Regiment