Great Lakes Dredge & Dock Co.
| Name | Great Lakes Dredge & Dock Co. |
|---|---|
| Vessel Owner For |  WILLIAMS, HARRY B. |
| City | Chicago |
| State | IL |
| Country | United States |
| Begin Date | 1931-00-00 |
| End Date | 1955-00-00 |
| Registry | U.S. |
| Official Number | 230866 |
| Name | Great Lakes Dredge & Dock Co. |
|---|---|
| Vessel Owner For | WILLIAMS, HARRY B. |
| City | Chicago |
| State | IL |
| Country | United States |
| Begin Date | 1931-00-00 |
| End Date | 1955-00-00 |
| Registry | U.S. |
| Official Number | 230866 |