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The working titles of this film were Adventures of Daniel Boone, Dan'l Boone and Attack on Boonesboro. An onscreen copyright notice states: "Copyright MCMLV by Daniel Boone Inc." This statement conflicts with information contained in the copyright registration, in which the claimant is listed as Republic Pictures Corp. and the year of registration given as 1956. Although the film was ultimately shot in Trucolor, according to an July 8, 1955 Hollywood Reporter news item, it was originally planned to be produced in Eastman Color and CinemaScope. Faron Young, who sings "Long Green Valley" in the film, was a country singer who made his motion picture debut in another Republic film, Hidden Guns, released in January 1956 (see below).
As depicted in the film, Daniel Boone and his family guided settlers into Kentucky in 1775, erecting a fort on the site of what is now Boonesboro. From that year on, settlers endured frequent Shawnee and Tory attacks, and in 1778, Boone was briefly held at the Shawnee village of Chillicothe. Simon Girty was an American soldier who in 1878 began to lead Indian and British attacks on Americans along the northern and western frontier. In 1796, he escaped into Canada, and in 1818, he died. Henry Hamilton, who commanded the frontier post of Detroit, was known among the region's Indians as the "Hair Buyer" because he paid bounties for rebel scalps during the Revolution.
Because the picture was filmed in Mexico rather than Kentucky, Congressman Eugene Siler attempted to organize a Kentucky boycott of the film. A March 29, 1956 Daily Variety news item noted that the AFL-CIO had also planned a boycott of the film, in order to "teach a lesson to an American employer who ran away to a foreign country whereby he escaped paying American union wage rates to American workmen." Gannaway-Ver Halen Productions asserted that inclement weather prevented shooting in Kentucky, the story's locale. Producer Albert C. Gannaway also claimed that some of the film's financing originated in Mexico. A April 26, 1956 Los Angeles Times news item reported that the boycott had been lifted following "an agreement on the part of the producer not to engage in 'runaway' foreign production in the future." For additional information on other films featuring Daniel Boone, see entry for Daniel Boone (in AFI Catalog of Feature Films, 1931-40).