| Grigg, David; AMO 11/03; 2002 | AMO 11/03 | 2002-00-00 | AMERICAN MARINER | Second Mate |
| Grigg, David; ASC Soundings 11(1)1991 | ASC Soundings 11(1)1991 | 1991-00-00 | BUFFALO | Third Mate |
| Grigg, David; ASC Soundings 12(1) 1992 | ASC Soundings 12(1) 1992 | 1992-00-00 | BUFFALO | Third Mate |
| Grigg, David; ASC Soundings June 1985 | ASC Soundings June 1985 | 1985-00-00 | ST. CLAIR | Watchman |
| Grigg, David; ASC Soundings June 1985 | ASC Soundings June 1985 | 1985-00-00 | NICOLET | Watchman |
| Grigg, David; ASC Soundings May 1987 | ASC Soundings May 1987 | 1987-00-00 | AMERICAN REPUBLIC | Watchman |
| Grigg, David; ASC Soundings May 1987 | ASC Soundings May 1987 | 1987-00-00 | AMERICAN REPUBLIC | Watchman |
| Grigg, David; ASC Soundinngs Apr 1990 | ASC Soundinngs Apr 1990 | 1990-00-00 | BUFFALO | Third Mate |
| Grigg, David; pc Tom Geiger (1995 ASC Soundings); 1995 | pc Tom Geiger (1995 ASC Soundings) | 1995-00-00 | AMERICAN REPUBLIC | Third Mate |
| Grigg, David; Soundings July 1993 | Soundings July 1993 | 1993-00-00 | BUFFALO | Third Mate |
| Grigg, David; Soundings June-July 1994 | Soundings June-July 1994 | 1994-00-00 | AMERICAN REPUBLIC | Third Mate |
| Grigg, David; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | JOHN J. BOLAND | Second Mate |
| Grigg, David; Soundings May 1988 | Soundings May 1988 | 1988-00-00 | AMERICAN REPUBLIC | Watchman |