Andy Griffith and The Darlings (actually, the Dillards):
The Beatles, audio only
Joan Baez, with the Greenbriar Boys (John Herald on guitar and vocals; Bob Yellin on banjo; Ralph Rinzler might also be playing); audio only:
Pete Seeger; audio only:
The Carter Family; audio only:
Steve, Digging your pick!!! Cash, in addition to being one heck of a singer, one of the coolest dudes ever—going to prison to record and big fighter for diversity!!!
"Little Darlin' Pal of Mine" was based on an old hymn "Oh My Loving Brother." The melody was also used in the Carter Family's "When the World's on Fire" and in Woody Guthrie's "This Land Is Your Land."