William Hemsley Emory | |
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| Born | September 7, 1811 Queen Anne's County, Maryland |
| Died | December 1, 1887 (aged 76) Washington, D.C. |
| Place of burial | |
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| Service/ | |
| Years of service | 1831–1836, 1838–1876 |
| Rank | Major General |
| Commands held | XIX Corps |
| Battles/wars | |
| Other work | Surveyor |
William Hemsley Emory (September 7, 1811 – December 1, 1887) was a prominent American surveyor and civil engineer of the 19th century. As an officer in the U.S. Army Corps of Topographical Engineers he specialized in mapping the United States border, including the Texas–Mexico border, and the Gadsden Purchase border, 1844–1855, and published lasting scientific reports on the border region.