James Riddle Hoffa (February 14,1913--disappeared July 30,1975) was an American labor union leader and author who served as the President of the International Brotherhood of Teamsters (IBT) union from 1958 until 1971.
James Riddle Hoffa (February 14,1913--disappeared July 30,1975) was an American labor union leader. James Riddle Hoffa (February 14,1913--disappeared July 30,1975) was author. These American labor union leader served as the President of the International Brotherhood of Teamsters (IBT) union from 1958 until 1971. Author served as the President of the International Brotherhood of Teamsters (IBT) union from 1958 until 1971.