Where was the rock bank with which Jorma Kaukonen was best know for his work based? 
Jorma Kaukonen: Jorma Ludwik Kaukonen, Jr. ( ; ; born December 23, 1940) is an American blues, folk, and rock guitarist, best known for his work with Jefferson Airplane and Hot Tuna. " Jefferson Airplane: Jefferson Airplane was a rock band based in San Francisco, California, who pioneered psychedelic rock.
San Francisco, California