In 1948, he returned to his private business in Houston, but remained active in efforts to promote free trade and economic cooperation between the United States and its allies during the Cold War.
1948年、彼はヒューストンで事業を再開したが、冷戦中の米国及び同盟国間の自由貿易と経済協力を推進する努力を積極的に続けた。