You limited your search to:

 Decade: 1880-1889
 Collection: The Mexican Revolution on the Border: Primary Sources from El Paso
[Cavalry Drilling Exercise #2]
Photograph of the drilling cavalry on the Mexican Border. The second cavalryman from the right has his service revolver pointed in the air. texashistory.unt.edu/ark:/67531/metapth187726/
[Cavalry Drilling Exercise #3]
Photograph of the drilling cavalry on the Mexican Border. The second cavalryman from the right has his service revolver pointed in the air. texashistory.unt.edu/ark:/67531/metapth187725/