The "Air Force One" call sign was created after a 1953 incident during which a Lockheed Constellation named Columbine II, carrying President Dwight D. Eisenhower, entered the same airspace as a commercial airline flight using the same flight number.

Who was the first president to use air force one? OK. Let's think. My stream of consciousness:
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The relevant information to answer the above question is: The "Air Force One" call sign was created after a 1953 incident during which a Lockheed Constellation named Columbine II, carrying President Dwight D. Eisenhower, entered the same airspace as a commercial airline flight using the same flight number. The answer is President Dwight D. Eisenhower.
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