| Hughes, John J.; 1910 Red Book; 1910 | 1910 Red Book | 1910-00-00 | HURON | Chief Engineer |
| Hughes, John J.; 1915 Red Book; 1915 | 1915 Red Book | 1915-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1917 Red Book; 1917 | 1917 Red Book | 1917-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1920 Red Book; 1920 | 1920 Red Book | 1920-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1921 Red Book; 1921 | 1921 Red Book | 1921-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1922 Red Book; 1922 | 1922 Red Book | 1922-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1923 Red Book; 1923 | 1923 Red Book | 1923-00-00 | CITY OF TOLEDO | Chief Engineer |
| Hughes, John J.; 1924 Red Book; 1924 | 1924 Red Book | 1924-00-00 | CITY OF TOLEDO | Chief Engineer |