George Koether (1907–2006) was a journalist, speechwriter, businessman, lecturer, economist, a friend to Ludwig and Margit von Mises, and a longtime ambassador for Misesian economics. See this post on the Mises blog written at the time of his death.
Ludwig von Mises: ". The use of money in a market economy is a praxeologically necessary fact. That gold, and not something else, is used as money is merely a historical fact and as such cannot be conceived by catallactics." - Human Action