Lincoln, Mary (b. Todd)(1818–82) First Lady; born in Lexington, Ky. She married Abraham Lincoln in 1842. She was emotionally immature and she became mentally unbalanced as the years passed. As first lady, it seemed that she could do nothing right; she overspent, was exceedingly jealous of Lincoln's affections, and was accused of Confederate sympathies. Following the loss of her son Willie in 1862, and Lincoln's assassination in 1865, she had a mental breakdown and was briefly treated in a sanitarium in 1875. After a tour of Europe, she returned to Springfield, Ill.
The Cambridge Dictionary of American Biography, by John S. Bowman. Copyright © Cambridge University Press 1995. Reproduced with permission.