John Marchant served 1977 - 2001
| SHIP | FROM | TO | COMMENTS |
| HMS Vernon | 1977 | ||
| HMS Mohawk | 1979 | 1980 | |
| HMS Brighton | 1980 | 1982 | |
| HMS Wakeful | 1982 | 1983 | |
| HMS Phoebe | 1983 | 1991 | |
| HMS Argyll | 1991 | 1993 | |
| JAAC/ADAC Farnborough | 1993 | 1996 | |
| HMS Westminster | 1996 | 2001 | |
| DISCHARGED RN | 2001 |