| Irwin, Robert Chamberlain | | | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain | | | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain | | | WEXFORD | Captain |
| Irwin, Robert Chamberlain | | | WEXFORD | Captain |
| Irwin, Robert Chamberlain | | | WEXFORD | Captain |
| Irwin, Robert Chamberlain | | | WEXFORD | Captain |
| Irwin, Robert Chamberlain; 1899 Red Book; 1899 | 1899 Red Book | 1899-00-00 | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain; 1900 Red Book; 1900 | 1900 Red Book | 1900-00-00 | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain; 1901 Red Book; 1901 | 1901 Red Book | 1901-00-00 | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain; 1902 Red Book; 1902 | 1902 Red Book | 1902-00-00 | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain; 1903 Red Book; 1903 | 1903 Red Book | 1903-00-00 | MINNEDOSA | Captain |
| Irwin, Robert Chamberlain; 1906 Red Book; 1906 | 1906 Red Book | 1906-00-00 | BARLUM | Captain |
| Irwin, Robert Chamberlain; 1908 Lynn's; 1908 | 1908 Lynn's | 1908-00-00 | WEXFORD | Captain |