From Wikipedia
Bert Glennon (November 19, 1893 – June 29, 1967) was an American cinematographer and film director. He directed Syncopation (1929), the first film released by RKO Radio Pictures.
He was nominated for three Academy Awards in Best Cinematography categories, for the films Stagecoach (1939), Drums Along the Mohawk (1939), and Dive Bomber (1941).
Glennon worked as a cinematographer on over a hundred films for directors including John Ford, André De Toth, Josef Von Sternberg, Raoul Walsh, and Cecil B. DeMille.
His son, James Glennon, was also a noted cinematographer.