Probably best known for his song "You're a Grand Old Flag," George M. Cohan was an American songwriter as well as singer and performer. His musicals revolutionized the theater world in America. He brought American vernacular speech, stories, and characters, as well as patriotic music into American musicals. He is credited with developing the fast-moving American comic musical using devices from vaudeville.
Photo: George M. Cohan, photo by Carl Van Vechten in 1933, Library of Congress Prints and Photographs Collection