(CNN)-- A rare letter evincing a display of affection between President Theodore Roosevelt and his youngest son is up for sale by a dealer who obtained it from a Roosevelt family friend.

Cinematic recreation of the death of Quentin Roosevelt, son of Theodore Roosevelt, who was killed in action as a fighter ...

Franklin Delano Roosevelt was born January 30, 1882, the only son of wealthy parents James and Sara Delano Roosevelt (although his father had a son from a previous marriage). Roosevelt began studying ...