He died four years later. At least one of Lincoln's kids inherited his love of animals. According to the Smithsonian Magazine, Tad Lincoln was a rambunctious child whose energy was always felt ...

Lincoln’s second son, Eddie, died in 1850 at the age of four; another, Willie, died of Typhoid fever in 1862. His youngest son, Tad Lincoln, died in 1871. Lincoln suffered from “melancholia,” the ...