| Billard, Douglas; ISMA Directory; 1985 | ISMA Directory | 1985-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1986 | ISMA Directory | 1986-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1987 | ISMA Directory | 1987-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1988 | ISMA Directory | 1988-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1989 | ISMA Directory | 1989-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1991 | ISMA Directory | 1991-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1992 | ISMA Directory | 1992-00-00 | | Captain |
| Billard, Douglas; ISMA Directory; 1993 | ISMA Directory | 1993-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1994 | ISMA Directory | 1994-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1995 | ISMA Directory | 1995-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1996 | ISMA Directory | 1996-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1997 | ISMA Directory | 1997-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1998 | ISMA Directory | 1998-00-00 | | Retired |
| Billard, Douglas; ISMA Directory; 1999 | ISMA Directory | 1999-00-00 | | Retired |