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The credits were taken from a dialogue transcript of the film. At the end of the film, the narrator implies that the stranger is one of the unknown soldiers who died serving the country. Although a copyright statement dated 1955 appears on the transcript, the film was not registered for copyright. According to the continuity, a scene set during the Civil War appears before the opening credits, showing the "friendly stranger" and a second character, "Sgt. Pusey," both Union Army officers, trying to deliver gold to Gen. Ulysses S. Grant, in spite of the dangers posed by Rebel soldiers and Indians. The scene ends with the sound of Indian war cries. The name of the "friendly stranger" is never revealed during the film; however, the cutting continuity refers to him as "Ever." A narrator heard intermittently at the beginning of the film introduces the main characters.
Popular singing cowboy Tex Ritter, who played himself, sang two songs in the film. The title and composer-lyricist of the first song, which was heard as a voice-over during the opening credits, have not been determined. Modern sources identify the second song variously as "Remember the Alamo" and "The Legend of the Alamo," and credit Texan songwriter Jane Bowers as its composer. According to the dialogue transcript, "The Star-Spangled Banner" was sung by a chorus behind the dialogue. Flashback sequences in which the modern characters discuss historical events were sometimes depicted using stills and voice-overs. Modern sources state that the film was sponsored by The Greyhound Lines bus company. Some modern sources refer to the film as Freedom Highway. Down Liberty Road marked the feature film debut of popular child actor Tommy Kirk, a veteran of The Mickey Mouse Club television program. According to a March 1957 Hollywood Reporter news item, the film was voted the Best Motion Picture of the Year by the Freedoms Foundation at Valley Forge for its "outstanding pictorial expressions of the understanding of the American Way of Life."