William Henry Seward

William Henry Seward (May 16, 1801 – October 10, 1872) was United States Secretary of State from 1861 to 1869, and earlier served as governor of New York and as a United States Senator. A determined opponent of the spread of slavery in the years leading up to the American Civil War, he was a prominent figure in the Republican Party in its formative years, and was praised for his work on behalf of the Union as Secretary of State during the Civil War.
https://en.wikipedia.org/wiki/William_H._Seward