From "Google," here is more on the history of the story, from which the song comes.

The Trail of the Lonesome Pine is a 1908 romance novel/western novel written by John Fox, Jr.. The novel became Fox's most successful, and was included among the top ten list of bestselling novels for 1908 and 1909. The novel has been adapted numerous times for both stage and screen, the most notable being a 1916 silent Cecil B. DeMille production and a 1936 adaptation helmed by Henry Hathaway. The 1936 version, starring Sylvia Sidney, Henry Fonda, and Fred MacMurray, was nominated for an Academy Award for Best Original Song for Louis Alter and Sidney D. Mitchell's "A Melody for the Sky." It was also awarded the Venice Film Festival Award for Best Color Film. Hathaway's version marked the first time the Technicolor process was used for outdoor filmmaking.

The novel was adapted into a successful stage play by Clara Lou Kelly, and was designated the "official outdoor drama" by the Commonwealth of Virginia in 1994. Since 1964, the play has been performed in an outdoor theater in Big Stone Gap, Virginia, the hometown of the novel's author.

The late Arthur Godfrey, who was an early 1940's-'50's radio and TV icon in the States, often performed this song - badly.