In theory, rainwater is like distilled-water*, but it gets its compositions largely by dissolving particulate materials in the atmosphere especially the troposphere - when droplets of water nucleate on atmospheric particulates, and secondarily by dissolving gasses from the atmosphere.
Updated May 29, 2016. Franklin D. Roosevelt, the 32nd President of the United States, led the country both during the Great Depression and World War II. He was charismatic and innovative at a time when the United States needed exactly that kind of leadership.
Franklin D. Roosevelt for most of it. Herbert Hoover was in office when the Depression started, and Harry S. Truman was President at the very end of WWII. Franklin Delano Roosevelt was the President during the depression and World War II. Herbert Hoover was president when the economic crash occurred.