The firm retained its name long after the deaths of founding partners White (1906), McKim (1909), and Mead (1928). The major partners became William M. Kendall and Lawrence Grant White, Stanford's son. Among the firm's final works under the name McKim, Mead & White was the National Museum of American History in Washington, D.C. Designed primarily by partner James Kellum Smith, it opened in 1964. Smith died in 1961, and the firm was soon renamed Steinmann, Cain and White.