Question: Where is the company headquarters of the airline whose call sign was named after a former U.S. Air Mail pilot?
Sentence (from "Leon D. Cuddeback"): Leon Dewey "Lee" Cuddeback (May 16, 1898 - July 6, 1984) flew the first scheduled, civilian Air Mail (Contract Air Mail) flight in the United States on April 6, 1926.
Relevant evidence: No