Major General Salvador Enrique Felices (August 13, 1923 – July 14, 1987) was the first Puerto Rican to reach the rank of major general in the United States Air Force. In 1957, he participated in "Operation Power Flite", the first round-the-world nonstop flight by a jet airplane.
First Lieutenant César Luis González (June 10, 1919 – November 22, 1943) was an officer in the United States Army Air Forces during World War II. Gonzalez was the first Puerto Rican pilot in the United States Army Air Forces, one of the first to participate in the July 1943 invasion of Sicily, and the first Puerto Rican pilot to die in World War II. His name is listed on the "Roll of Honor" of the 314th Troop Carrier Group World War II and his hometown Adjuntas and the capital of Puerto Rico, San Juan, have honored his memory by naming a street after him.
Víctor Manuel Blanco (March 10, 1918 – March 8, 2011) was a Puerto Rican astronomer who in 1959 discovered Blanco 1, a galactic cluster. Blanco was the second Director of the Cerro Tololo Inter-American Observatory in Chile, which had the largest telescope in the Southern Hemisphere at the time. In 1995, the 4-meter telescope was dedicated in his honor and named the Víctor M. Blanco Telescope; it is also known as the "Blanco 4m."
Major General Orlando Llenza (July 1, 1930 – March 11, 2021) was the second Puerto Rican to reach the rank of Major General (two-star General) in the United States Air Force. Llenza served as commander of the Puerto Rico Air National Guard (PRANG).