Simon began his adult life at Oxford, then to the desert of California for five years that cured the TB he had. He settled in California, married and raised a family. He took an extended family visit to Germany when the Crash of 1929 left him stranded. He found work as an American consultant. He developed a rare disease that made is impossible for him to return to the U.S. He lived in Germany during the war years. He died at age 75.