One who barnstorms; one whose profession is barnstorming(noun)
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Use "barnstormer" in a sentence
"Angela has been an active "barnstormer" in behalf of the POW/MIA effort."
"Lindbergh became a barnstormer, or daredevil pilot, performing at fairs and other events."
"Inside him beat the heart of a daredevil barnstormer, who in 1922 had walked on the wings of an airplane as it looped through the air in the Midwest, secured by invisible wire cables."