| Duffy, Earl F.; Great Lakes News 2/21; 1921 | Great Lakes News 2/21 | 1921-00-00 | CRESCENT CITY | Second Assistant |
| Duffy, Earl F.; LCA Bulletin 7/1920 | LCA Bulletin 7/1920 | 1920-00-00 | RICHARD TRIMBLE | Third Assistant |
| Duffy, Earl F.; LCA Bulletin 9/20; 1920 | LCA Bulletin 9/20 | 1920-00-00 | | Oiler |
| Duffy, Earl F.; LCA Bulletin 9/20; 1920 | LCA Bulletin 9/20 | 1920-00-00 | THOMAS LYNCH | Second Assistant |
| Duffy, Earl F.; LCA Bulletin July1924 | LCA Bulletin July1924 | 1924-00-00 | RICHARD TRIMBLE | Second Assistant |
| Duffy, Earl F.; LCA Bulletin July1924 | LCA Bulletin July1924 | 1924-00-00 | HENRY CORT | First Assistant |