Jack
Jack
JFK John Kennedy John F. Kennedy John Fitzgerald Kennedy Jack Kennedy Jack Lieutenant Kennedy "Crash" Kennedy "Shaft" Congressman Kennedy Senator Kennedy President Kennedy JFK, Sr.
John F. Kennedy was not commonly referred to as "Little Blue Boy." This nickname is not widely recognized or associated with him. He was more commonly known by his initials, JFK, or as President Kennedy.
He sometimes referred to as JFK. His full name is John Fitzgerald Kennedy.
Camelot
Formally he's referred to as John F. Kennedy or sometimes John Kennedy; his friends and family called him Jack, so he was known to some as Jack Kennedy. But he is only very rarely referred to as Jack F. Kennedy. The most common names are President Kennedy, John F. Kennedy and JFK.
John Kennedy is the one associated with Camelot.
He is often referred to as President Kennedy or JFK.
John Kennedy
John F Kennedy
JF Kennedy's administration was often referred to as Camelot.
John F. Kennedy was nicknamed Jack. If John Tyler, John Adams, or John Quincy Adams was called Jack, it's not obvious.