William Starke Rosecrans (September 6, 1819 – March 11, 1898) was an inventor, coal-oil company executive, diplomat, politician, and U.S. Army officer. He gained fame for his role as a Union general during the American Civil War. He was the victor at prominent Western Theater battles such as Second Corinth, Stones River, and the Tullahoma Campaign, but his military career was effectively ended following his disastrous defeat at the Battle of Chickamauga in 1863.

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