Franklin Delano Roosevelt, My Boss - Paperbackby Grace Tully (Author) ""Franklin Delano Roosevelt, My Boss"" is a memoir written by Grace Tully, who served as a personal secretary to the former President of the United States, Franklin D. Roosevelt. The book offers a unique perspective on Roosevelt's life and presidency, as Tully was privy to many of his innermost thoughts and decisions. Tully shares personal anecdotes and insights into Roosevelt's leadership style, his relationships with his