William S. Messervy | |
|---|---|
 Messervy about 1849 | |
| Delegate-elect to the United States House of Representatives | |
| In office June 20, 1850 – March 4, 1851 | |
| Preceded by | New office |
| Succeeded by | Richard Hanson Weightman |
| Secretary of New Mexico Territory | |
| In office April 8, 1853 – July 20, 1854 | |
| Appointed by | President Franklin Pierce |
| Preceded by | John Greiner |
| Succeeded by | W. H. H. Davis |
| Acting Governor of New Mexico Territory | |
| In office April 1, 1854 – July 20, 1854 | |
| Governor | David Meriwether |
| Mayor of Salem | |
| In office 1856–1858 | |
| Preceded by | Joseph Andrews |
| Succeeded by | Nathaniel Silsbee Jr. |
| Personal details | |
| Born | August 26, 1812 Salem, Massachusetts |
| Died | February 19, 1886 (aged 73) |
| Political party | Democratic |
William Sluman Messervy (August 26, 1812 – February 19, 1886) was an American trader on the Santa Fe Trail who in 1850 was elected to represent the New Mexico Territory in the United States House of Representatives. He did not take his seat because Congress did not yet recognize New Mexico’s territorial authority.
He later served as Secretary of the Territory and in 1854 was acting Governor of New Mexico.
In 1854, Messervy returned to his home town, Salem, Massachusetts, where he was elected as Mayor and became a Justice of the Peace.