First Battalion Four Marines
Personnel Rosters - Bravo Company
1 January - 31 December 1968
Tour Date - When Joined Company
| Name | Rank | MOS | Tour | Purple Heart | Purple Heart | KIA |
| O'Connor, Michael M | 1st Lt | 0302 | 21 Aug 68 | |||
| Ollar, David L | Cpl | 0231 | ||||
| Omer, Jerry A | PFC | 0341 | 8 Feb 68 | |||
| Orm---, W W | Cpl | 0331 | 14 Nov 68 | |||
| Ortiz, Anthony | PFC | 0311 | 6 Jul 68 | |||
| Ortiz, Eliezer | PVT | 0311 | 10 Jun 67 | 5 Jun 68 | ||
| Osterloh, James P | Sgt | 0331 | 30 Jan 68 | |||