powered by AFI
According to an undated credit sheet submitted to the PCA, contained in the file on the film in the MPAA/PCA Collection at the AMPAS Library, this independent production was to be "An Eagle-Lion Classics Release," presented by Joseph Justman. The PCA file also indicates that a completed version of the picture, starring Howard Da Silva as "Capt. Dempster," was submitted to the PCA in April 1951. When the film was acquired for release by RKO early in May 1951, the studio, then run by Howard Hughes, announced that, due to Da Silva having testified as an unfriendly witness before the House Committee on Un-American Activities, his scenes would be reshot with Brian Donlevy in his role.
Some scenes were filmed on location at the Ray Corrigan Ranch in Simi Valley, CA. Although Fred Allen is credited onscreen as editor, Hollywood Reporter production charts list Joe Gluck as editor. According to the Daily Variety review, footage from Irving Allen's earlier film New Mexico was reused in Slaughter Trail. Much of the film is accompanied by songs from folk singer Terry Gilkyson and a male chorus. One song, heard only briefly in the film, "The Girl in the Wood," became a hit recording for Frankie Laine.