| Kortman, David | | | ADAM E. CORNELIUS | Captain |
| Kortman, David; 1998 Lakeboats; 1998 | 1998 Lakeboats | 1998-00-00 | BUFFALO | Captain |
| Kortman, David; 1999 Lake Boats; 1999 | 1999 Lake Boats | 1999-00-00 | ADAM E. CORNELIUS | Captain |
| Kortman, David; 2001 Lake Boats; 2001 | 2001 Lake Boats | 2001-00-00 | ADAM E. CORNELIUS | Captain |
| Kortman, David; 2002 Lake Boats; 2002 | 2002 Lake Boats | 2002-00-00 | H. LEE WHITE | Captain |
| Kortman, David; 2003 Lake Boats; 2003 | 2003 Lake Boats | 2003-00-00 | H. LEE WHITE | Captain |
| Kortman, David; 2004 Lake Boats; 2004 | 2004 Lake Boats | 2004-00-00 | H. LEE WHITE | Captain |
| Kortman, David; 2005 Lake Boats; 2005 | 2005 Lake Boats | 2005-00-00 | JOHN J. BOLAND | Captain |
| Kortman, David; ASC Soundings 11(1)1991 | ASC Soundings 11(1)1991 | 1991-00-00 | AMERICAN MARINER | Second Mate |
| Kortman, David; ASC Soundings 12(1) 1992 | ASC Soundings 12(1) 1992 | 1992-00-00 | AMERICAN MARINER | First Mate |
| Kortman, David; ASC Soundings 12(4) 1992 | ASC Soundings 12(4) 1992 | 1992-00-00 | | |
| Kortman, David; ASC Soundings 12(4) 1992 | ASC Soundings 12(4) 1992 | 1992-00-00 | | Second Mate |
| Kortman, David; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | NICOLET | First Mate |
| Kortman, David; ASC Soundinngs Apr 1990 | ASC Soundinngs Apr 1990 | 1990-00-00 | AMERICAN MARINER | Second Mate |
| Kortman, David; pc Tom Geiger (1995 ASC Soundings); 1995 | pc Tom Geiger (1995 ASC Soundings) | 1995-00-00 | WALTER J. MCCARTHY JR. | First Mate |
| Kortman, David; Soundings July 1993 | Soundings July 1993 | 1993-00-00 | AMERICAN MARINER | First Mate |
| Kortman, David; Soundings June-July 1994 | Soundings June-July 1994 | 1994-00-00 | AMERICAN REPUBLIC | First Mate |
| Kortman, David; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | BUFFALO | Captain |
| Kortman, David; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | SAM LAUD | Captain |
| Kortman, David; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | JOHN J. BOLAND | Captain |
| Kortman, David; Soundings May 1988 | Soundings May 1988 | 1988-00-00 | AMERICAN MARINER | Second Mate |