William Sterling King | |
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| Born | October 6, 1818 New York City, U.S. |
| Died | June 29, 1882 (aged 63) Roxbury, Massachusetts, U.S. |
| Place of burial | |
| Allegiance | United States |
| Service/ | Union Army |
| Years of service | 1862–1865 |
| Rank | Colonel Brevet Brigadier General |
| Unit | 35th Massachusetts Infantry Regiment |
| Commands | 4th Massachusetts Heavy Artillery Regiment |
| Battles/wars | American Civil War |
William Sterling King (October 6, 1818 – June 29, 1882) was an American officer in the Union Army during the American Civil War, twice elected to the Massachusetts legislature, and was the first Chief Constable of the then-Massachusetts State Constabulary (the contemporary name of the modern Massachusetts State Police).