Alvin Reed (Ace) Lyle was born on September 1, 1918, in Agua Dulce, Texas, to Charles Edgar and Minneola Willingham Lyle. After graduation from high school in Alice, Texas, Ace enrolled at the University of Texas, Austin, earning a BS in Mechanical Engineering. In April 1941 he was commissioned an Ensign in the US Navy, and in January 1942 married Rose Neal Stewart, his college sweetheart. His military training included a short course in Aeronautical Engineering at the California Institute of Technology, and attendance at the Pratt & Whitney Aircraft Engine Maintenance School in Hartford, Connecticut. Ace and Rose’s first child, Cynthia, was born in Hartford in 1943. Ace was assigned to the second USS Yorktown (CV-10) during its construction at the Norfolk Naval Shipyard, taking part in its shakedown cruise and several battles in the Pacific as an Engineering Maintenance Officer with air group VF-5, and later as the ship’s Aircraft Engineering Maintenance Division Officer. After the war, he commenced flight training in Corpus Christi, Texas (where his first son Michael was born in 1946), and earned his wings at Pensacola, Florida, in 1948. He then served as an aviator at the Naval Air Station North Island (Coronado, California) and on the USS Valley Forge, flying the F8F Bearcat and F9F Panther. During the Korean War, he flew combat missions and served as the Assistant Air Operations Officer (Air Ordnance) aboard the USS Princeton. After returning from Korea, he served as the Assistant Air Weapons Training Officer at the Fleet Air Gunnery School at El Centro, California, becoming the Acting Commanding Officer of the School for six months in 1952. His second son, Terry, was born in Coronado in 1952. Ace left the Navy in 1953, at rank of Lieutenant Commander, at which time the family moved to China Lake, California, where Ace served as a civilian at the US Naval Ordnance Test Station, Inyokern. In 1954, he joined Los Alamos Scientific Laboratory (LASL) in Los Alamos, New Mexico. While at LASL, he helped to establish the Los Alamos Graduate Center of the University of New Mexico (UNM), and earned an MS degree in Nuclear Engineering from UNM in 1960. He worked in several positions at LASL, including Omega West Reactor Supervisor. He served throughout his civilian professional life in the US Navy Reserve, achieving the rank of Captain. Ace was active in Los Alamos civic and church affairs, serving on the Planning and Zoning Boards of Los Alamos County, and in various positions at The United Church of Los Alamos. Ace retired from LASL (now Los Alamos National Laboratory) in 1985. He and Rose moved to Rohnert Park, California, where Ace died due to Parkinson’s disease in 1997.