William H. Warner

William H. Warner
Born	8 May 1812 Columbia County, New York
Died	26 September 1849(1849-09-26) (aged 37) Northeastern California
Allegiance	United States
Service/branch	United States Army
Years of service	1836–1849
Rank	Brevet Captain
Unit	Corps of Topographical Engineers
Battles/wars	Second Seminole War Mexican–American War

William Horace Warner (8 May 1812 – 26 September 1849) was an officer in the United States Army's Corps of Topographical Engineers. In 1849, he led an Army survey party north from Sacramento through the uncharted country of northeastern California into south central Oregon. Warner was killed by Native Americans in northeastern California, just south of the Oregon border. In the mid-nineteenth century, two army outposts in southern Oregon were named after Warner. Today, the Warner Mountains, Warner Valley, and a number of other landmarks bear his name.

Warner was born on 8 May 1812 in Columbia County, New York. He attended West Point, entering the school in July 1831 and graduating on 1 July 1836. Warner graduated from West Point, tenth in a class of 49 cadets. Upon graduation, he was commissioned as a second lieutenant and assigned to the United States Army's 1st Regiment of Artillery.

As a second lieutenant, Warner served in the Second Seminole War from mid-1836 until 1838. He was then assigned to help oversee the movement of the Cherokee Nation to the west. On 7 July 1838, Warner was appointed to the Corps of Topographic Engineers, retaining his rank of second lieutenant. As a topographic engineer officer, Warner was placed in charge of a project to improve the harbor at New Bedford, Massachusetts. He led that effort until 1839, when he was directed to survey of Sackets Harbor in New York. Later that year, Warner was sent back to Florida to support action in the on-going war with the Seminole people. Then in 1840, Warner was directed to survey the Detroit River in Michigan. He finished that assignment in 1841.

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