| Walkley, Harold; ASC Soundings 11(1)1991 | ASC Soundings 11(1)1991 | 1991-00-00 | CHARLES E. WILSON | GpMM |
| Walkley, Harold; ASC Soundings 12(1) 1992 | ASC Soundings 12(1) 1992 | 1992-00-00 | ADAM E. CORNELIUS | GpMM |
| Walkley, Harold; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | AMERICAN REPUBLIC | GpMM |
| Walkley, Harold; ASC Soundings 9(2)1989 | ASC Soundings 9(2)1989 | 1989-00-00 | CHARLES E. WILSON | GpMM |
| Walkley, Harold; ASC Soundings August 1987 | ASC Soundings August 1987 | 1987-00-00 | AMERICAN REPUBLIC | ASC Maintenance Team |
| Walkley, Harold; ASC Soundings August 1987 | ASC Soundings August 1987 | 1987-00-00 | AMERICAN MARINER | ASC Maintenance Team |
| Walkley, Harold; ASC Soundings August 1987 | ASC Soundings August 1987 | 1987-00-00 | INDIANA HARBOR | ASC Maintenance Team |
| Walkley, Harold; Soundings Dec 1993 | Soundings Dec 1993 | 1993-00-00 | AMERICAN REPUBLIC | GpMM |