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American politician Woodrow Wilson (1856 - 1924), President of the United States from 1913-1921, goes over papers at his desk as his second wife Edith Bolling Galt Wilson (1872 - 1961) looks on, mid 1910s. Edith was often referred to as "secret president" because of the important role she played in Wilson's presidency during his long and debilitating illness following a stroke. (Photo by Stock Montage/Getty Images)