First Battalion Four Marines
Personnel Rosters - Delta Company
1 January - 31 December 1968
Tour Date - When Joined Company
| Name | Rank | MOS | Tour | Purple Heart | Purple Heart | KIA |
| Odett, Donald R | L/Cpl | 0341 | 17 Apr 67 | |||
| Olson, Richard James | PFC | 0311 | 22 Oct 67 | 26 Apr 68 | ||
| Osterag, Donald J | Cpl | 0351 | 20 Jan 68 | |||
| Outten, Thomas L | PFC | 0311/0341 | 17 May 68 | |||
| Owen, John C | Cpl | 0311 | ||||
| Owens, Jimmy L | Cpl | 0311/2141 | ||||