Re "I first saw [Airplane] at the first "Human Be-In" held in Golden Gate Park in 1967 and later at Chet Helm's Family Dog venue in San Francisco and at the Avalon Ballroom." : You lucky sod. I'd have loved that. There's a great clip of a pre-Slick Airplane at the Fillmore Auditorium in 1966. Looks fun. (Are you in the audience?)
http://www.youtube.com/watch?v=gWxaW7WxUL4 http://www.youtube.com/watch?v=gWxaW7WxUL4 Grace Slick & The Great Society playing live were also impressive. My favourite Airplane (cum-Starship) album was Blows Against the Empire. The last hurrah for hippiedom.