Which American president had an explorer son called Kermit?

Kermit Roosevelt MC (October 10, 1889 – June 4, 1943) was an American businessman, soldier, explorer, and writer. A son of Theodore Roosevelt, the 26th President of the United States, Kermit graduated from Harvard College, served in both World Wars (with both the British and U.S. Armies), and explored two continents with his father.

Source: Wikipedia