| Conlin, John; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | ROMAN | Captain |
| Conlin, John; 1918 Red Book; 1918 | 1918 Red Book | 1918-00-00 | QUEEN CITY | Captain |
| Conlin, John; 1919 Red Book; 1919 | 1919 Red Book | 1919-00-00 | QUEEN CITY | Captain |
| Conlin, John; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | QUEEN CITY | Captain |
| Conlin, John; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | QUEEN CITY | Captain |
| Conlin, John; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | ALFRED KRUPP | Captain |
| Conlin, John; Great Lakes News 12/34; 1934 | Great Lakes News 12/34 | 1934-00-00 | GENERAL MARKHAM | First Mate |