Level 2a Robert Todd Lincoln, the eldest and only surviving son of President Abraham Lincoln, served the nation as Secretary of War under Presidents Garfield and Arthur, and later as U.S. Minister to the United Kingdom. A Harvard graduate and respected lawyer, he was present at or near three presidential assassinations. He led the Pullman Company as president and chairman, contributing significantly to American industrial growth. Known for his dignity and dedication to public service, Robert passed away in Vermont at the age of 82, leaving behind a legacy of statesmanship and quiet strength.