First Battalion Four Marines
Personnel Rosters
1 January - 31 December 1966
| Name | Rank | MOS | Company | Tour | Purple Heart | Purple Heart | Purple Heart | KIA |
| Iacoviello, Ronald | PFC | 0351 | D | 16 Mar 66 | ||||
| Idziak, Gerald E | PFC | 0311 | B/C | 10 Oct 66 | ||||
| Icho, Augustine F | Sgt | 0341 | HS | |||||
| Ingerson, Michael F | Sgt | 0311 | A | |||||
| Ingham, Robert S | Sgt | 0331 | B | |||||
| Inman, Linwood J | L/Cpl | 0311 | A | 26 Aug 66 | ||||
| Ivers, Jerry A | PFC | 0311 | B | 8 Nov 66 | ||||