Arquero, Elpidio A. E6 Staff Sergeant Battalion Landing Team 13 1967-05-10 May 10 , 1967 Cisneros, Roy E4 Corporal B Co. 1/3 3rd MarDiv 1968-09-11 September 11 , 1968 Covella, Joseph F. E7 Gunnery Sergeant Advisor (ARVN) 1966-01-03 January 3 , 1966 Castillo, William E2 Private First Class E Co. 2/4 3rd