The 1st U.S. Cavalry, Troop. G. served in Cuba, fighting at Las Guasimas and San Juan Hill (where they operated near the Rough Riders). At San Juan Hill, Troop G had two men killed and 4 wounded. The entire regiment suffered 12 killed and 47 wounded. Troop G was commanded by Capt. Wainwright.
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Clerk of Joint Committee on Printing, The Abridgement of Message from the President of the United States to the Two Houses of Congress. Vol. 3, (Washington: Government Printing Office, 1899), 340-341.
Field, Ron, Spanish-American War 1898. . (Washington: Brasseys Inc., 1998), 59. (This is the source of the image).