On Feb. 20, 1862, 150 years ago, young William Wallace Lincoln, third son of President Abraham Lincoln and his wife Mary, died. He was just 11 years old and the likely cause was typhoid fever.

In 1862, William Wallace Lincoln, the 11-year-old son of President Abraham Lincoln and first lady Mary Todd Lincoln, died at the White House, apparently of typhoid fever. • In 1905, in Jacobson v.