Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was the 31st President of the United States (1929–1933). Hoover, born to a Quaker family, was a professional mining engineer. He achieved American and international prominence in humanitarian relief efforts in war-time Belgium and served as head of the U.S. Food Administration during World War I
31st First Lady: Lou Henry Hoover (March 29, 1874 – January 7, 1944) was the wife of President of the United States Herbert Hoover and First Lady, 1929-1933. Marrying her engineer husband in 1899, she travelled widely with him and became a cultivated scholar and linguist. During World War I, Mrs. Hoover helped him in providing relief for Belgian refugees.