Donna L. Halper, Hats off to a Happy Cowboy: A Salute to Herb Jeffries, su Classic Images. URL consultato il 4 luglio 2010 (archiviato dall'url originale il 1º marzo 2013).
«In addition to being the first all-black singing cowboy film, Harlem on the Prairie was unique in other ways. Black films usually played in black theaters only. (One estimate is that there were as many as 500 black theaters nation-wide at the time when Herb Jeffries' first movie came out.) This film was not only shown in segregated movie houses; it was also shown in East and West Coast theaters where the audiences were mainly white.»
