LINER NOTES: From the shadows of the Sierra Nevadas drift the engrossing three-part harmonies of Jack and Joe Hannah and Joe's son, Lon — the Sons of the San Joaquin. These perennial favorites at the Santa Clarita Cowboy Festival were inspired as youngsters by Roy Rogers and the Sons of the Pioneers, playing on their father's radio on the family ranch. Steeped in the history of the West — all three are retired schoolteachers — the Hannah boys have become the barometer against which all Western harmony groups are measured. In "From Whence Came the Cowboy," Jack's experience and talents as an educator shine through as he traces the history of the cowboy from Spanish days through modern times.