A correction to my posting on November 13th, above. The correct name of the folk club was Ash Alley 241, not 421. Some other performers at the club were Michael Cooney, the Ash Alley Singers with Alan Fudge on guitar, Judy Collins, and the Greenbriar Boys. Some attendees at the club were Linda Ronstadt (a local girl), Joan Baez, Russell Hoban, and Thornton Wilder.
Although a close second, not even Linda Ronstadt can compete in my heart with Dian James and the four hours that I spent in her company.