Herbert Clark Hoover (August 10, 1874 – October 20, 1964) was the 31st President of the United States (1929–1933). Hoover, born to Quaker parents of German, Swiss, Canadian, English, and Irish descent, was originally a professional mining engineer and author.
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.