ELMROCK POST OFFICE
KNOTT COUNTY,
| NAME | TITLE | DATE APPOINTED |
| Rachel Richie | Postmaster | 08/09/1911 |
| Elizabeth Fitzpatrick | Postmaster | 11/09/1914 |
| Silas Brown | Postmaster | 06/21/1916 |
| Pearlie Messer | Postmaster | 01/04/1917 |
| William Compton | Postmaster | 03/21/1918 |
| Mrs. Bertha Cumpton | Postmaster | 02/16/1926 |
| Mrs. Rachel C. Patrick | Acting Postmaster | 06/30/1960 |
| Mrs. Rachel C. Patrick | Postmaster | 11/30/1960 |
| Discontinued on September 2, 1989; mail to Hueysville (Postal Bulletin 21753) | ||