The Furnace (film)
The Furnace is a lost 1920 American silent drama film directed by William Desmond Taylor, written by Julia Crawford Ivers based upon the 1920 novel of the same name by Leslie Beresford.
It was distributed by Realart Pictures.
William Desmond Taylor
William Desmond Taylor (born William Cunningham Deane-Tanner, 26 April 1872 – 1 February 1922) was an Anglo-Irish-American director and actor.
A popular figure in the growing Hollywood motion picture colony of the 1910s and early 1920s, he directed 59 silent films between 1914 and 1922 and acted in 27 between 1913 and 1915.
Taylor's murder on 1 February 1922, along with other Hollywood scandals, such as the Roscoe Arbuckle trial, led to a frenzy of sensationalist and often fabricated newspaper reports.
The murder remains an official cold case.
Ian Barry (director)
Ian Barry is an Australian director of film and TV.
Rachel Feldman
Rachel Feldman( born August 22, 1954) is an American director of film and television and screenwriter of television films.
Peter Levin
Peter Levin is an American director of film, television and theatre.
Howard W. Koch
Howard Winchel Koch( April 11, 1916 – February 16, 2001) was an American producer and director of film and television.
Mary Stevens, M.D.
Mary Stevens, M.D. is a 1933 American pre-Code drama film starring Kay Francis, Lyle Talbot and Glenda Farrell.
The film was directed by Lloyd Bacon and based on the story by Virginia Kellogg.
It was released by Warner Bros. in July 22, 1933.
A female doctor who has romantic troubles decides to have a baby without the benefit of marriage.
Hanro Smitsman
Hanro Smitsman, born in 1967 in Breda( Netherlands), is a writer and director of film and television.
Brian Johnson (special effects artist)
Brian Johnson( born 1939 or 1940) is a British designer and director of film and television special effects.
Lloyd Bacon
Lloyd Francis Bacon (December 4, 1889 – November 15, 1955) was an American screen, stage and vaudeville actor and film director.
As a director he made films in virtually all genres, including westerns, musicals, comedies, gangster films, and crime dramas.
He was one of the directors at Warner Bros. in the 1930s who helped give that studio its reputation for gritty, fast-paced "torn from the headlines" action films.
And, in directing Warner Bros.' "42nd Street", he joined the movie's song-and-dance-number director, Busby Berkeley, in contributing to "an instant and enduring classic [that] transformed the musical genre."

Question: Do director of film The Furnace (Film) and director of film Mary Stevens, M.D. have the same nationality?
Answer: yes