Conversation so far:
Who did Murray Rothbard marry?
Murray Rothbard married JoAnn Schumacher
When did Murray Rothbard marry JoAnn Schumacher?
Murray Rothbard married JoAnn Schumacher In 1953
Why did Murray Rothbard call JoAnn Schumacher Joey?

Question: Who was JoAnn?
Self-contained rewrite: Who was  JoAnn Schumacher?