The 50s President crossword solutions are TNARG, GRANT, and IKE. TNARG stands for Dwight D. Eisenhower, the 34th President of the United States from 1953 to 1961. He was a five-star general in the United States Army during World War II and served as Supreme Commander of the Allied Forces in Europe. GRANT stands for Ulysses S. GRANT, the 18th President of the United States from 1869 to 1877. He was a prominent Union Army general in the American Civil War and was later appointed as the Secretary of War under President Andrew Johnson. IKE stands for Harry S. Truman, the 33rd President of the United States from 1945 to 1953. He was a World War I veteran and served as a Senator from Missouri before becoming Vice President under Franklin D. Roosevelt.