On April 21, 1904, President Theodore Roosevelt attended the cornerstone laying ceremony for Memorial Continental Hall in Washington, D.C., the headquarters building of the Daughters of the American Revolution. Roosevelt stands on a flag-draped platform reviewing documents alongside a group of dignitaries, with women in the elaborate hats typical of the Edwardian period seated nearby. The DAR, founded in 1890, was at the height of its influence during the Progressive Era, and Roosevelt's participation reflected the period's strong interest in patriotic heritage organizations.