United States Postmasters at Wiconisco Post Office, Wiconisco, Dauphin County, Pennsylvania. Appointments made by the President of the United States.
| Henry Schrafer | April 23, 1835 |
| Simon Gratz; George H. Alenson | May 1835 |
| Josiah Bowman; Michael Sander | October 11, 1842 |
| Simon Gratz | August 1, 1837 |
| Henry Sheafer | April 25, 1835 |
| Josiah Bowman | October 11, 1842 |
| Samuel E. Griscom | April 9, 1850 |
| Henry Shaefer | May 28, 1853 |
| George Hellonson | August 1, 1837 |
| M. Sauser | October 11, 1842 |
| Henry Sheafer | May 28, 1853 |
| Susan W. Sheafer | January 16, 1860 |
| Thomas Harper | March 26, 1861 |
| Jacob A. Harper | March 8, 1866 |
| Henry Kendall | October 17, 1866 |
| B. F. Akley | December 23, 1869 |
| William C. F. Reed | July 21, 1871 |
| Andrew G. S. Maurer | January 11, 1872 |
| David C. Smith | Mar 11, 1874 |
| George C. Diefenderfer | July 11, 1879 |
| Jacob S. Prout | August 2, 1883 |
| Jacob S. Prout | August 7, 1885 |
| Lewis M. Neiffer | July 16, 1885 |
| Anna M. Neiffer | June 3, 1887 |
| John Kaufman | April 19, 1889 |
| George A. Pinkerton | September 2, 1893 |
| Michael Hensel | November 6, 1897 |
| E. Les Roy Keen | July 2, 1909 |
| George S. J. Keen | May 15, 1922 |
| George S. J. Keen | February 25, 1931 |
| Claude E. Minnich | February 24, 1934 |
| Claude E. Minnich | June 18, 1934 |
| Claude E. Minnich | July 18, 1935 |
| Claude E. Minnich | August 8, 1940 |
| Charlotte Kelly | March 1, 1949 |
| Samuel R. Klinger | December 21, 1950 |
| Leona P. Waters | April 25, 1958 |
| Leona P. Waters | August 31, 1960 |
| Leona P. Keen | December 9, 1960 |
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Appointments register from U. S. Appointments of U. S. Postmasters, 1832-1971, available at Ancestry.com.
Corrections and additional information should be added as comments to this post.