Question: Who was the director of the 1956 western film starring the American actor who played Palmer Cortland on "All My Children"?

Context paragraphs:
The Last Wagon (1956 film): The Last Wagon is a 1956 western film starring Richard Widmark.  It was co-written and directed by Delmer Daves and tells a story set during the American Indian Wars: the survivors of an Indian massacre must rely on a man wanted for several murders to lead them out of danger.

Stagecoach to Fury: Stagecoach to Fury is a 1956 Western film starring Forrest Tucker as Frank Townsend.  It was the first film from Robert L. Lippert's Regal films; the B picture unit of 20th Century Fox set up to provide second features shot in CinemaScope.  The film, with exteriors shot around Kanab, Utah was nominated for an Academy Award for black-and-white cinematography for the 29th Academy Awards.

Tribute to a Bad Man: Tribute to a Bad Man is a 1956 western film starring James Cagney about a rancher whose harsh enforcement of frontier justice alienates the woman he loves.  It was directed by Robert Wise and based on the short story "Hanging's for the Lucky" by Jack Schaefer, the author of "Shane".

The Lone Ranger (1956 film): The Lone Ranger is a 1956 Western film based on "The Lone Ranger" television series, starring Clayton Moore and Jay Silverheels.  "The Lone Ranger" was the first of two theatrical features based on the popular TV series of the same name; the other one being "The Lone Ranger and the Lost City of Gold" (1958), which was Bonita Granville's last film appearance.  She retired from the screen to marry Jack Wrather.

The Fastest Gun Alive: The Fastest Gun Alive is a 1956 Western film starring Glenn Ford, Jeanne Crain, and Broderick Crawford.

Seven Men from Now: Seven Men from Now is a 1956 Western film directed by Budd Boetticher and starring Randolph Scott, Gail Russell, and Lee Marvin.  The film was written by Burt Kennedy and produced by John Wayne's Batjac Productions.

Gun the Man Down: Gun the Man Down is a 1956 western film directed by Andrew V. McLaglen and starring James Arness and Angie Dickinson in her first leading role.  The film was produced by Robert E. Morrison for his brother John Wayne's company Batjac Productions.  It was the second theatrical feature directed by McLaglen, but his first of many westerns.

James Mitchell (actor): James Mitchell (February 29, 1920 – January 22, 2010) was an American actor and dancer.  Although he is best known to television audiences as Palmer Cortlandt on the soap opera "All My Children" (1979–2010), theatre and dance historians remember him as one of Agnes de Mille's leading dancers.  Mitchell's skill at combining dance and acting was considered something of a novelty; in 1959, the critic Olga Maynard singled him out as "an important example of the new dancer-actor-singer in American ballet", pointing to his interpretive abilities and "masculine" technique.

The Peacemaker (1956 film): The Peacemaker (1956) is a western film directed by Ted Post and starring James Mitchell, Rosemarie Bowe, and Jan Merlin.  Hal Richards based the script on the novel of the same name by Richard Poole.

Comanche (1956 film): Comanche is a 1956 Western film directed by George Sherman and starring Dana Andrews.  The film has a theme song "A Man Is As Good As His Word" sung by The Lancers.

Supporting paragraphs: The Peacemaker (1956 film) James Mitchell (actor)
Answer: Ted Post