Emory, William Hemsley was born on September 7, 1811 in Queen Annes County, Maryland, United States. Son of Thomas and Anna Maria (Hemsley) Emory.
Graduated from the United States Military Academy, 1831.
Commissioned First lieutenant Topographical Engineers, 1838. Principal assistant on N.E. boundary survey between United States and Canada, 1844-1846. Commissioner and chief astronomer for running boundary line between California and Mexico, 1848-1854.
Commissioned captain Army of the West, 1851. Commissioned major 2d Cavalry, 1855, lieutenant colonel Army of West, 1857. Commanded Indian Territory from Fort Leavenworth, 1861.
Commanded a division under General Banks in Louisiana, 1863. Commanded 19th Army Corps in Red River Expedition, 1864. Distinguished at Fisher’s Hill, 1864.
Commissioned major general United States Volunteers, 1865. Commanded Department of W. Virginia, 1865-1866, Department of Washington, District of Republican, 1869-1871, Department of Gulf, 1871-1875. Retired as brigadier general, 1876.
Author: Notes of a Military Reconnaissance from Fort Leavenworth in Missouri to San Diego in California, 1848. Report on the United States and Mexican Boundary Survey, 1858-1859.