Fleckenstein was a graduate of Fordham University in New York City. In the Spring of 1953, he visited West Germany addressing nationalist right wing groups. In August 1953, the State Department cancelled his passport claiming he interfered with the internal politics of a foreign nation. West Germany later expelled him from the country.
He served as attorney for the "Committee to Free Ezra Pound."
Edward Fleckenstein was a close associate of Frederick Weiss and H. Keith Thompson  and worked with them in the establishment of the American Committee for the Advancement of Western Culture where he served as General Counsel.
Edward Fleckenstein never married.
- Edward Fleckenstein at "Find A Grave" with photo and brief bio
- Photo of Edward Fleckenstein in later years.
- FBI background interview of Edward Fleckenstein