| Yowell, William A. | | | AMERICAN REPUBLIC | Third Mate |
| Yowell, William A. | | | JOHN J. BOLAND | Captain |
| Yowell, William A. | | | INDIANA HARBOR | Captain |
| Yowell, William A.; 1999 Lake Boats; 1999 | 1999 Lake Boats | 1999-00-00 | CHARLES E. WILSON | Captain |
| Yowell, William A.; 2001 Lake Boats; 2001 | 2001 Lake Boats | 2001-00-00 | JOHN J. BOLAND | Captain |
| Yowell, William A.; 2002 Lake Boats; 2002 | 2002 Lake Boats | 2002-00-00 | JOHN J. BOLAND | Captain |
| Yowell, William A.; 2003 Lake Boats; 2003 | 2003 Lake Boats | 2003-00-00 | JOHN J. BOLAND | Captain |
| Yowell, William A.; 2004 Lake Boats; 2004 | 2004 Lake Boats | 2004-00-00 | JOHN J. BOLAND | Captain |
| Yowell, William A.; ASC Soundings 11(1)1991 | ASC Soundings 11(1)1991 | 1991-00-00 | CHARLES E. WILSON | First Mate |
| Yowell, William A.; ASC Soundings 12(1) 1992 | ASC Soundings 12(1) 1992 | 1992-00-00 | CHARLES E. WILSON | First Mate |
| Yowell, William A.; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | INDIANA HARBOR | Second Mate |
| Yowell, William A.; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | CHARLES E. WILSON | First Mate |
| Yowell, William A.; ASC Soundings September 1985 | ASC Soundings September 1985 | 1985-00-00 | CONSUMERS POWER | deckhand |
| Yowell, William A.; ASC Soundings September 1985 | ASC Soundings September 1985 | 1985-00-00 | | Wheelsman |
| Yowell, William A.; ASC Soundings September 1985 | ASC Soundings September 1985 | 1985-00-00 | | Third Mate |
| Yowell, William A.; ASC Soundings September 1985 | ASC Soundings September 1985 | 1985-00-00 | ST. CLAIR | Second Mate |
| Yowell, William A.; InlandMariners | InlandMariners | | INDIANA HARBOR | Captain |
| Yowell, William A.; Lake Boats 1996 | Lake Boats 1996 | 1996-00-00 | AMERICAN REPUBLIC | Captain |
| Yowell, William A.; pc Tom Geiger (1995 ASC Soundings); 1995 | pc Tom Geiger (1995 ASC Soundings) | 1995-00-00 | AMERICAN REPUBLIC | Captain |
| Yowell, William A.; Soundings July 1993 | Soundings July 1993 | 1993-00-00 | INDIANA HARBOR | First Mate |
| Yowell, William A.; Soundings June-July 1994 | Soundings June-July 1994 | 1994-00-00 | INDIANA HARBOR | First Mate |
| Yowell, William A.; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | GEORGE A. STINSON | Captain |
| Yowell, William A.; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | WALTER J. MCCARTHY JR. | Captain |
| Yowell, William A.; Soundings Mar-Apr 1997 | Soundings Mar-Apr 1997 | 1997-00-00 | INDIANA HARBOR | Captain |
| Yowell, William A.; Soundings May 1988 | Soundings May 1988 | 1988-00-00 | NICOLET | Second Mate |