She wasn't insane, just feeling deep loss of her husband, 3 children, per exhibit at Lincoln museum
(Newser) -
After Abraham Lincoln's assassination in April 1865, his wife, Mary Todd Lincoln, descended into a cycle of what History.com calls "erratic" behavior, complete with "unearthly shrieks" and "terrible convulsions." This behavior, considered an improper attention-grab at the time for women of her stature, led...