| Walkley, H. M.; 1949 Red Book; 1949 | 1949 Red Book | 1949-00-00 | ANN ARBOR NO. 3 | Chief Engineer |
| Walkley, H. M.; 1950 Red Book; 1950 | 1950 Red Book | 1950-00-00 | ANN ARBOR NO. 3 | Chief Engineer |
| Walkley, H. M.; 1951 Red Book; 1951 | 1951 Red Book | 1951-00-00 | ANN ARBOR NO. 3 | Chief Engineer |
| Walkley, H. M.; 1956 Red Book; 1956 | 1956 Red Book | 1956-00-00 | ANN ARBOR NO. 7 | Chief Engineer |
| Walkley, H. M.; 1957 Red Book; 1957 | 1957 Red Book | 1957-00-00 | ANN ARBOR NO. 7 | Chief Engineer |
| Walkley, H. M.; 1958 Red Book; 1958 | 1958 Red Book | 1958-00-00 | ANN ARBOR NO. 7 | Chief Engineer |