Big for his age at 14, Jack Lucas begged his mother to help him enlist after Pearl Harbor. She collaborated in lying about his age in return for his promise to someday finish school. After training at Parris Island, he was sent to Honolulu. When his unit boarded a troop ship for Iwo Jima, Mr. Lucas was ordered to remain behind for guard duty. He stowed away to be with his friends and, discovered two days out at sea, convinced his commanding officer to put him in a combat unit rather than the brig. He had just turned 17 when he hit the beach, and a day later he was fighting in a Japanese trench when he saw two grenades land near his comrades.
He threw himself onto the grenades and absorbed the explosion. Later a medic, assuming he was dead, was about to take his dog tag when he saw Mr. Lucas's finger twitch. After months of treatment and recovery, he returned to school as he'd promised his mother, a ninth-grader wearing a Medal of Honor around his neck.
More from Peter Collier here at WSJ.com.