Puerto Rican Army personnel

Emiliano Mercado del Toro (August 21, 1891 – January 24, 2007) was a Puerto Rican supercentenarian and military veteran who was, at age 115, the world's oldest person following the death of 116-year-old Elizabeth Bolden on December 11, 2006, and the world's oldest man from November 19, 2004 (death of Fred H. Hale, Sr.) until his own death on January 24, 2007.At the time of his death in January 2007, aged 115 years and 156 days, Mercado was the second oldest fully validated male ever, behind Danish-American Christian Mortensen's record of 115 years 252 days. (Although Shigechiyo Izumi was still believed to be older at the time of his death. Izumi's record was withdrawn by Guinness World Records in 2010.)

Colonel Virgil Rasmuss Miller (November 11, 1900 – August 5, 1968) was a United States Army officer who served as Regimental Commander of the 442d Regimental Combat Team (RCT), a unit which was composed of "Nisei" (second generation Americans of Japanese descent), during World War II. He led the 442nd in its rescue of the Lost Texas Battalion of the 36th Infantry Division, in the forests of the Vosges Mountains in northeastern France.

Major Fernando E. Rodríguez Vargas, DDS (February 24, 1888 – October 21, 1932) was an odontologist (dentist), scientist and a Major in the U.S. Army who discovered the bacteria which causes dental caries.

Sylvia Regina Rexach González (January 22, 1922 – October 20, 1961) was a Puerto Rican comedy scriptwriter, poet, singer and composer of boleros.

Brigadier General Salvador Teodoro Roig Marietti, (November 9, 1907 – July 6, 1984), was the Superintendent of the Puerto Rico Police Department under the Government of Luis Muñoz Marín, and Adjutant General of the National Guard under the Government of Roberto Sánchez Vilella.
Roig was appointed Chief of police of Puerto Rico for a second time in 1963, and he was subsequently appointed to the position of Adjutant General of the Puerto Rico National Guard. Among his accomplishments as a public servant stands have occupied the positions of Chief of Police of Puerto Rico, Military Assistant and Chief of Protocol of La Fortaleza (The Fortress) under the Government of Jesús T. Piñero. He was also exalted in the Puerto Rican Sports Hall of Fame for his exploits in the sport of archery target.

Tech4 Carmen Contreras-Bozak, (December 31, 1919 – January 30, 2017) was the first Puerto Rican woman to serve in the U.S. Women's Army Corps (WAC) where she served as an interpreter and in numerous administrative positions.

Colonel Antulio Segarra Guiot (January 20, 1906 – September 14, 1999) was a United States Army officer who in 1943 became the first Puerto Rican in history to command a Regular Army Regiment. Segarra served as Military Aide to the Military Governor of Puerto Rico Theodore Roosevelt Jr. and during World War II commanded the 65th Infantry Regiment.

Master Sergeant Juan E. Negrón Martínez (September 26, 1929 – March 29, 1996) was a member of the United States Army who served in the 65th Infantry Regiment during the Korean War. He was awarded a Distinguished Service Cross for his actions during combat in the Chinese Spring Offensive at Kalma-Eri, North Korea, on April 28, 1951, which was posthumously upgraded to the Medal of Honor in 2014.

Manuel González Pató (3 March 1913 – 10 November 1973) was a Puerto Rican educator, writer, and sportsman.

Brigadier General Antonio Rodríguez Balinas (February 28, 1928 – September 21, 2011) was the first commander of the Office of the First U.S. Army Deputy Command.