Alejandro A. Dominguez, 24
Dominguez's mother refused to sign papers allowing her son to enlist early. His enlistment became official on his 18th birthday on Sept. 11, 2001. 'He liked being in the middle of the action,' said his wife, recalling his phone calls from Iraq. 'I was always petrified.'
Sources: Times research, Defense Department, iCasualties.org