WereMaurice Elvey and Arthur Lubin both from the USA?
Arthur Lubin Arthur Lubin (July 25, 1898 – May 12, 1995) was an American film director and producer who directed several "Abbott & Costello" films, "Phantom of the Opera" (1943), the "Francis the Talking Mule" series and created the talking-horse TV series "Mister Ed". A prominent director for Universal Pictures in the 1940s and 1950s, he is perhaps best known today as the man who gave Clint Eastwood his first contract in film.
Arthur Q. Bryan Arthur Quirk Bryan (May 8, 1899 – November 18, 1959) was an American actor, voice actor, comedian and radio personality, remembered best for his longtime recurring role as well-spoken, wisecracking Dr. Gamble on the radio comedy "Fibber McGee and Molly" and for creating the voice of the Warner Brothers cartoon character Elmer Fudd.