Source: Sumner County Archives
| Name | Date of Appointment | Term of Service |
| John R. Thompson, P. E. | Summer of 1870 | |
| Jas Hardy Campbell | Oct 1869 | One Year |
| John G. Ray, P. E. | Oct 1870 | Three Years |
| John W. Cooker | Oct 1870 | One Year |
| James Crawford | Oct 1871 | One Year |
| Geo. W. Martin | Oct 1872 | One Year |
| John F. Hughes, P. E | Oct 1873 | Four Years |
| John W. Bell | Oct 1873 | Two Years |
| Henry J. Ivie | Oct 1875 | One Year |
| George W. Johnston | Oct 1876 | One Year |
| Joseph B. Allison, P. E. | Oct 1877 | Two Years |
| Thomas B. Malone | Oct 1877 | One Years |
| James H. Roberts | Oct 1878 | Three Months |
| Henry B. Blue | Mar 1879 | Seven Months |
| Henry(?) M. Stephens, P. E. | Oct 1879 | Two Years |
| Robert P. Gray | Oct 1879 | One Year |
| Isaac W. Keathley | Oct 1880 | Two Years |
| William G. Dorris, P.E. | Oct 1881 | Four Years |
| Jasper Nichols | Oct 1882 | One Year |
| William D. Cherry | Oct 1883 | One Year |
| William R. Keathley | Oct 1884 | Two Years |
| Peyton A. Sowell, P. E. | Oct 4, 1885 | Four Years |
| Samuel W. Bransford | Oct 12, 1886 | Two Years |
| T. S. Collom | Oct 1888 | Two Years |
| ? Haynes | Oct 1890 | One Year |
| W. M. Leftwich, P. E. | Oct 1899 | One Year |
| John W. Rooker, P. E. | 1892 | One Year |
| John W. Rice, P. E. | 1892 | One Year |
| ?, P. E. | 1892-3 | One Year |
| J. J. Pitts, P. E. | 1892-3 | |
| T. B. Fisher, P. E. | 1893-94 | One Year |
| J. J. Pitts, P. E. | 1893-94 | Two Years |
| J. A. Orman | 1894-5 | One Year |
| Rufus E. Travis, P. E. | 1894-5 | |
| M. J. Collier, P. E. | 1895-6 | |
| Rufus E. Travis, P. E. | 1895-6 | |
| W. J. Collier, P. E. | 1896-7 | |
| Rufus E. Travis, P. E. | 1896-7 | |
| W. J. Collier | 1897-8 | |
| Rufus E. Travis | 1897-8 |