Hazlitt was a founding network node bridging journalism and the MPS

Evidence

Henry Hazlitt (1894–1993) was a highly influential New York-based journalist writing for Newsweek, the Wall Street Journal, the New York Times, the Nation, the American Mercury, the Freeman, and the like. He won fame for his popular scientific Economics in One Lesson (1946). A founding member of MPS and the U.S. Philadelphia Society, Hazlitt contributed five papers to MPS meetings. — Philip Mirowski & Dieter Plehwe (eds.), The Road from Mont Pèlerin, 1348