| Campbell, W. L.; 1899 Red Book; 1899 | 1899 Red Book | 1899-00-00 | ANN ARBOR NO. 2 | Chief Engineer |
| Campbell, W. L.; 1901 Red Book; 1901 | 1901 Red Book | 1901-00-00 | JOHN W. GATES | Chief Engineer |
| Campbell, W. L.; 1902 Red Book; 1902 | 1902 Red Book | 1902-00-00 | GENERAL ORLANDO M. POE | Chief Engineer |
| Campbell, W. L.; 1902 Red Book; 1902 | 1902 Red Book | 1902-00-00 | JAMES J. HILL | Chief Engineer |
| Campbell, W. L.; 1903 Red Book; 1903 | 1903 Red Book | 1903-00-00 | GENERAL ORLANDO M. POE | Chief Engineer |
| Campbell, W. L.; 1904 Red Book; 1904 | 1904 Red Book | 1904-00-00 | GENERAL ORLANDO M. POE | Chief Engineer |
| Campbell, W. L.; 1905 Red Book; 1905 | 1905 Red Book | 1905-00-00 | PRINCETON | Chief Engineer |
| Campbell, W. L.; 1906 Red Book; 1906 | 1906 Red Book | 1906-00-00 | PRINCETON | Chief Engineer |