A great place to find a list of the Presidents of the United States of America is on Wikipedia. Another website that has the list of US presidents is 'PresidentUSA'.

He is the Commander-in-Chief of the armed forces

Regina Benjamin is not in the military, and, as far as I can tell, never was. As the Surgeon General of the United States, she falls under the United States Public Health Service Commissioned Corps, which is a uniformed service of the United States, but is not a military service. However, the Commissioned Corps uses a rank structure taken from the Navy, and she holds the rank of Vice Admiral in the USPHSCC.

• Ulysses S. Grant United States Military Academy , class of 1843
• Dwight Eisenhower United States Military Academy, class of 1915
• Jimmy Carter United States Naval Academy,class of 1946

Andrew Jackson held the highest military rank of Major General in the United States Army.