| Firby, William; 1907 Red Book; 1907 | 1907 Red Book | 1907-00-00 | EXCELSIOR | Captain |
| Firby, William; 1911 Red Book; 1911 | 1911 Red Book | 1911-00-00 | EXCELSIOR | Captain |
| Firby, William; 1912 Red Book; 1912 | 1912 Red Book | 1912-00-00 | EXCELSIOR | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | GEM | Wheelsman |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | MOHAWK CHIEF | Wheelsman |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | L. L. LYON | Wheelsman |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | L. L. LYON | Wheelsman |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | BELLE STOCKTON | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | BELLE STOCKTON | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | CANADA | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | WINDSON | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | MINNIE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | HOPE | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | VICTORIA | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | VICTORIA | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | VICTORIA | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | D. R. VAN ALLEN | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | GEORGE L. DUNLAP | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | DOVE | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | ST. PAUL | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | SAGINAW VALLEY | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | SANILAC | First Mate |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | GREAT WESTERN | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | GREAT WESTERN | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | GREAT WESTERN | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |
| Firby, William; Mansfield 1899 | Mansfield 1899 | 1899-00-00 | LANSDOWNE | Captain |