Edwin McMasters Stanton (December 19, 1814 – December 24, 1869) was an American lawyer and politician who served as Secretary of War under the Lincoln Administration during most of the American Civil War. Stanton's effective management helped organize the massive military resources of the North and guide the Union to victory under the command by Ulysses S. Grant.
He was married to Mary Lamson from 1836 until her death in 1844. They had two children. Then he was married to Mary Hutchinson. His brother David committed suicide. Stanton died on December 24, 1869 in Washington, D.C. from respiratory failure, aged 55.