The 1921 edition of "Songs of the Cowboys," N. Howard Thorp, includes "A Border Affair," the original Badger Clark poem, pp. 10-11.
Thorp prefaces the verses with a note that it was sung by Orville Cox, a Taos cowboy. The tune is not included; I wonder how close it was to the one used by others who recorded either the original song or the simplified "Spanish Is a Loving Tongue."