McKim, Mead & White was a prominent American architectural firm that thrived at the turn of the twentieth century. The firm's founding partners were Charles Follen McKim (1847–1909), William Rutherford Mead (1846–1928) and Stanford White (1853–1906). They hired many other architects, partners, associates, designers and draftsmen, who came to prominence during or after their time at the firm.
The firm's New York City buildings include Manhattan's former Pennsylvania Station, the Brooklyn Museum, and the main campus of Columbia University. Elsewhere in New York State and New England, the firm designed college, library, school and other buildings such as the Boston Public Library and Rhode Island State House. In Washington, D.C., the firm renovated the West and East Wings of the White House, and designed Roosevelt Hall on Fort Lesley J. McNair and the National Museum of American History. Across the United States, the firm designed buildings in Illinois, Michigan, Ohio, Pennsylvania, Tennessee, Washington and Wisconsin. Other examples are in Canada, Cuba and Italy.
McKim and Mead joined forces in 1872. They were joined in 1879 by White, who, like McKim, had worked for architect Henry Hobson Richardson. Their work applied the principles of Beaux-Arts architecture, the adoption of the classical Greek and Roman stylistic vocabulary as filtered through the Parisian École des Beaux-Arts, and the related City Beautiful movement after 1893 or so. Its vision was to clean up the visual confusion of American cities and imbue them with a sense of order and formality during America's Gilded Age.