Two memorials to the Rough Riders were erected in Cuba shortly after the Spanish–American War ended. One, erected by Brigadier General Wood out of general funds provided for Cuba's military occupation, was erected next to the Spanish Army blockhouse atop San Juan Hill. This memorial stood on a square concrete base, on the four corners of which were placed artillery shells. A square plinth with sunk, blank panels on all four sides stood on the base. On the plinth rose a tapered square column with a flat top. Sunk into the face of this column was a bronze plaque, which read: "In memory of the officers and men of the United States army, who were killed in the assault and capture of this ridge, July 1, 1898, and in the siege of Santiago, July 1 to July 16, 1898. War between Spain and the United States." A second memorial, specific to the Rough Riders, was erected at Las Guasimas. The provenance of this memorial is not clear. It was shaped much like the one at San Juan Hill although the building materials were much different. This monument was set on a flagstone base. Rough-hewn pieces of dark grey granite were cemented together to form a rectangular plinth (square in cross-section) atop the flagstones. A tapered square column, made of the same rough-hewn, cemented granite, rose to a flat top. An artillery shell was placed atop the column, and a bronze plaque affixed to its face. The plaque read: "In Memory / Of the men of /The First and Tenth United States Cavalry, / Young's Brigade / Wheeler's Division, / Who Were Killed in the / Battle of Las Guásimas / June 24th 1898." It is not clear who first proposed a Rough Rider Memorial, or when the idea was first raised. A Rough Riders National Monument Society was organized on June 15, 1906. Lillian Capron, wife of Captain Allyn K. Capron, Jr. (the Rough Riders' first officer to be killed in action), was elected president and treasurer. Eldridge E. Jordan, a prominent businessman, was elected vice president. The other members of the board of directors included Charles E. Hunter, an Oklahoma Republican politician and clerk of the Oklahoma Federal District Court; William Henry Harrison Llewellyn, a New Mexico Territory Republican politician and United States Attorney; Captain James R. Church, M.D., U.S. Army; and the Reverend Henry A. Brown, U.S. Army.