Roy attended Cenizo Park Elementary School, Truman Middle School, and Edgewood High School in San Antonio.
Texas House Concurrent Resolution Number. 71 conferring the honor was adopted by both the House and Senate in May 2011 and approved by Governor Rick Perry in June 2011. Corporal Cisneros is honored on Panel 44W, Row 22 of the Vietnam Veterans Memorial.
Following his graduation in 1967, he joined the United States Marine Corps and trained at Camp Pendleton, California.
In December 1967, he deployed to Vietnam, where he became a squad leader with Company B, 1st Battalion, 3rd Marines, 3rd Marine Division (Reinforced), Fleet Marine Force. Representative Trey Martinez Fischer authored the resolution, which was sponsored by Senator Leticia Van de Putte.
Below is an excerpt from the resolution:
WHEREAS, On September 11, 1968, Corporal Cisneros was conducting a reconnaissance in force in Quảng Trị, the northernmost province in the Republic of Vietnam, when his company came under intense small arms and automatic weapons fire from an opposing company of North Vietnamese soldiers occupying fortified positions on a hill. During the ensuing combat, Corporal Cisneros skillfully maneuvered his squad across the hazardous terrain and directed his men"s fire with devastating accuracy, destroying three enemy bunkers.
WHEREAS, With his squad pinned down by a heavy volume of fire from a fourth emplacement, Corporal Cisneros advanced alone and sought single-handedly to destroy the position.
After firing a light antitank assault weapon into the bunker, he hurled hand grenades at the defenders and then opened fire with his rifle as he aggressively continued his assault. Disregarding his own safety, he was delivering an effective attack on the emplacement when he was mortally wounded.