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2 Hoover Herbert Clark, the 31-st President of USA (1929-1932)
- Mining Engineer, the 31-st President of USA (1929-1932), since 1910 - Production Engineer of the Kyshtymskiye Mining Plants Company at Ural, Director of "Maikop and General Petroleum Trust" (1910), in 1921 - Head of Food Supplies into Russia by Line of "the American Relief Administration"