Supervisor Photographs
| Supervisor Name | Service Years | Received |
| J. P. Zaun | 1906-1909 | |
| H. H. Russell | 1906-1910 | |
| L. W. Wolf | 1906-1915 | |
| F. A. Wagner | 1910-1917 | |
| S. J. Appleman | 1917-1923 | |
| E. R. Rinderle | 1919-1921 | |
| F. C. Zaun | 1921-1927 | |
| Leo J. Rinderle | 1922-1927 | |
| J. W. Wynkoop | 1923-1929 | |
| S. A. Struchen | 1927-1939 | |
| Howard J. Hinkle | 1935-1942 | |
| George E. Williams | 1942-1958 | |
| Oliver Carson | 1944-1947 |