Final answer:
The title "The Mysterious Mr. Lincoln" is suitable as it conveys the complexity and elusiveness of Abraham Lincoln's demeanor and actions, including his careful speech to avoid controversy and his incognito travel to allude potential assassination, which contribute to his historical mystique.
Step-by-step explanation:
The title "The Mysterious Mr. Lincoln" is appropriate because it captures the nuanced and often enigmatic nature of Abraham Lincoln's personality and political career. The word 'mysterious' in the title reflects Lincoln's cautiousness in making public statements, choosing his words carefully to avoid controversy, which is a trait underscored by historian McPherson when he describes Lincoln as a "commonplace prairie lawyer." Additionally, Lincoln's handling of a possible assassination threat by traveling incognito through Baltimore at night, which drew both criticism and curiosity, adds to his mystique. Moreover, Lincoln demonstrated a certain complexity as a leader that often makes his true intentions and views a subject of historical analysis and debate, as evidenced by his strategic silence on sensitive topics, his moderate political stances, and his opportunistic political personality that struck a chord with many Americans.