FLAGG, ERNEST (1857– ), American architect, was born at Brooklyn (N.Y.), on Feb. 6, 18S7. He studied at the Ecole des Beaux-Arts, Paris, and in 1891 began to practise as an architect in New York city. He designed St. Luke's hospital and the Singer building, New York city, the Corcoran Art gallery, Washington (D.C.), and the U.S. Naval academy, Annapolis (Md.) . He has designed many private residences and written Small Houses—Their Economic Design and Construction (1922).