Haven't seen too much about SoCal in he 60s--lots of us tried to be folksingers. Here are some really little knowns: Melinda Rinker (now a prof at stanford), George Ball (who wrote Baxter's Flatpicking Manual), Steve Stapenhorst (AKA S. Stapen, S. Horst and S. Forest); Owens, Bob and Carol (from Texas--Owens Castleman had some success); Tim Morgon; Tom Carvey; Al Ellington; the Green Valley Clodsfrom Pasadena.