Zachary Taylor
Taylor was the 12th president of the United States. He died one year into his term, unfortunately. He didn't get much of a chance to be the president, but we assume that he probably would have been a good one. He had an alleged IQ of 129.
Harry S. Truman
Truman was the 33rd President of the United States. He took over for FDR when he passed away, and he helped rebuild the economy of Western Europe, established the Truman Doctrine, and founded NATO. Truman had an IQ of 128.