Fritz Johann Hansgirg worked with an American industrialist who established the Kaiser Shipyards, which build Liberty ships during what war?
Fritz Johann Hansgirg:  Coming to the United States in 1940, he worked with American industrialist Henry J. Kaiser to design a magnesium plant in California, but at the outbreak of World War II, Hansgirg was arrested by the FBI on a Presidential warrant and interned for "the duration of the war." Henry J. Kaiser: Henry John Kaiser (May 9, 1882 – August 24, 1967) was an American industrialist who became known as the father of modern American shipbuilding. Henry J. Kaiser:  He established the Kaiser Shipyards, which built Liberty ships during World War II, after which he formed Kaiser Aluminum and Kaiser Steel.
World War II