I have the Elektra album (EKL112) in front of me and it is copyright 1957.   Unfortunately my LP for Song of the West has no such copyright.

The Cowboy Songs CD IS the Song of the West LP with the same track list and the same order. Aside from changing the name of the LP, the CD also has a different name for the last cut. The CD calls it "The Texas Song" where the LP calls it "Old Texas".