Question: Are George B. Seitz and Dudley Murphy both actors?

Context paragraphs:
Major General George B. McClellan: Major General George B. McClellan is an equestrian statue in Washington, D.C. that honors politician and Civil War general George B. McClellan.  The monument is sited on a prominent location in the Kalorama Triangle neighborhood due to efforts made by area residents.  The statue was sculpted by American artist Frederick William MacMonnies, a graduate of the École des Beaux-Arts whose best known work is a statue of Nathan Hale in New York City.  MacMonnies was chosen to design the statue following a lengthy competition organized by a statue commission, led by then Secretary of War William Howard Taft.  The monument was dedicated in 1907, with prominent attendees at the ceremony including President Theodore Roosevelt, New York City mayor George B. McClellan, Jr., politicians, generals and thousands of military personnel.

George B. Seitz: George Brackett Seitz (January 3, 1888 – July 8, 1944) was an American playwright, screenwriter, film actor and director.  He was known for his screenplays for action serials, including:

Kit Carson (film): Kit Carson is a 1940 Western film directed by George B. Seitz and starring Jon Hall as Kit Carson, Lynn Bari as Delores Murphy, and Dana Andrews as Captain John C. Fremont .  This picture was filmed on location at Cayente (Kayenta), Arizona and was one of the early films to use Monument Valley as a backdrop.  The supporting cast features Ward Bond as a character named "Ape," future "Lone Ranger" Clayton Moore without his mask, and Raymond Hatton as Jim Bridger.

...One Third of a Nation...: ...One Third of a Nation... is a 1939 American drama film directed by Dudley Murphy and written by Oliver H.P. Garrett and Dudley Murphy.  The film stars Sylvia Sidney, Leif Erickson, Myron McCormick, Hiram Sherman, the future director Sidney Lumet and Muriel Hutchison.  The film was released on February 10, 1939, by Paramount Pictures.

The Emperor Jones (1933 film): The Emperor Jones is a 1933 American pre-Code film adaptation of the Eugene O'Neill play of the same title, was made outside of the Hollywood studio system, financed with private money from neophyte wealthy producers, and directed by iconoclast Dudley Murphy, who had sought O'Neill's permission to film the play since its 1924 production in New York.  He cast Paul Robeson in his first film role, Dudley Digges, Frank H. Wilson, and Fredi Washington.  The screenplay was written by DuBose Heyward and filmed at Kaufman Astoria Studios with the beach scene shot at Jones beach Long Beach, New York.  Robeson starred in the O'Neill play on stage, both in the United States and England, a role that had helped launch his career.

George A. Seitz: George A. Seitz was an officer in the United States Navy.  He was born March 13, 1897, in Rochester, New York, the son of Albert and Caroline (Dubelbeiss) Seitz.  Seitz graduated from the Naval Academy in Anapolis in 1916.  He attended graduate school at MIT and organized the transport of material to North Africa during the Allied invasion and occupation.  He later commanded the USS Bunker Hill, and helped to save that ship during the worst suicide attack against America before September 11.  After the war, Seitz became Commander of the Marshall Islands, with the rank of Commodore.  According to US Navy records, he was flown from his Headquarters at Kwajalein, on October 15, 1947 for treatment of a severe case of Bronchial Pneumonia.  He died of a "heart ailment" ten days later.  He was fifty years old.  America detonated two atomic bombs in the Marshall Islands before Commodore Seitz died.

The Romance of Elaine: The Romance of Elaine is a 1915 American silent adventure film serial directed by George B. Seitz, Leopold Wharton and Theodore Wharton, based on the novel by Arthur B. Reeve.  The film is considered to be lost.

Dudley Murphy: Dudley Murphy (July 10, 1897 – February 22, 1968) was an American film director.  Murphy was born on July 10, 1897 in Winchester, Massachusetts.  He began making films in the early 1920s after working as a journalist.

Rogues and Romance: Rogues and Romance is a 1920 American silent drama film directed by George B. Seitz.  The film was a feature-length version of the serial "Pirate Gold", also directed by Seitz, and was shot in Europe.

Pirate Gold (1920 serial): Pirate Gold is a 1920 American adventure film serial directed by George B. Seitz.  Seitz also directed a feature-length version of the serial, "Rogues and Romance", released in December 1920.

Supporting paragraphs: George B. Seitz Dudley Murphy
Answer: no