"Ghost Riders in the Sky" was written in 1949 by Stan Rogers and popularized by Vaughan Monroe in the 50s; it's been covered I-don't-know-how-many times by folks as varied as Scatman Crothers and The Grateful Dead.
Here's an excerpt from an online biography of Stan Jones:
"The name Stan Jones doesn't pop up in too many country music reference books, but most fans of cowboy songs and Western movie soundtrack music, not to mention the music of Gene Autry, the Sons of the Pioneers, Vaughn Monroe, and Johnny Cash, know his name, as the author of "(Ghost) Riders in the Sky."
Stanley Davis Jones was born in Arizona in 1915 and became a forest ranger. He had an interest in music, could sing a little and play a guitar, and occasionally wrote songs in his spare time. In the fall of 1948, he was assigned as a technical advisor on a Columbia Pictures movie called The Walking Hills, starring Randolph Scott and Ella Raines and directed by John Sturges, when the crew was doing their location shooting in Death Valley. During a slow point in the work, Jones pulled out his guitar and started singing some of those songs and was told by Scott and the rest of the crew that the songs might go nicely in Western movies and that he should try and sell them to the Hollywood studios.
Jones followed their advice and tried to publish some of his songs (including "(Ghost) Riders in the Sky," which owed its melody to "When Johnny Comes Marching Home"), only to have them turned down by the music companies that he approached -- one even said that "Riders" was too dirgeful and funereal. He recorded that song and a few others on his own, and composer Eden Ahbez (best known for the hit "Nature Boy") heard "(Ghost) Riders in the Sky" and brought it to Burl Ives, who cut it for Columbia Records. It was later picked up by Bing Crosby, Gene Autry, and Vaughn Monroe, as well as dozens of others, and Jones had a new career and major Hollywood representation...."
For the whole thing, see:
http://entertainment.msn.com/artist/?artist=140592