Lou Henry Hoover (1874 - 1944) was an American humanitarian, geologist, and the first lady of the United States from 1929 to 1933, during her husband Herbert Hoover's presidency. Born in Iowa, she graduated from Stanford University with a degree in geology. Lou was an advocate for women's rights, education, and community service, playing a significant role in public and social welfare initiatives. She was deeply involved in volunteer work, especially during World War I, where she helped manage food relief programs. Lou was also known for her interest in travel, languages, and a strong passion for social issues, making her a progressive figure in her time.