I'm joining this conversation a little late, Nice to see so many that have surfed and also ski. Both have a lot in common.
I worked in the Industry for more years then i like to think about. Some of the legendary manufacturers that were not named here should include; Velzy, Channen Diffendreffer, Morey Pope, Challenger, Yater, All were some of the best of their era.
Lots of great boards were made over the years some like the Greg Noll "Da Cat" model now fetch big bucks from collectors. May Dora rest in peace. as others have said in the mid 1960's the short board revolution changed things. The back yard sharper came into his own. Smoke a joint get a vision and shape a magic stick. 9 times out of 10 they were pure crap. Others were on to something. Gerry Lopez Lightening Bolt was the mid 70's Icon. The one sharper that made the transition from longboards to short is Dick Brewer. He has had more influence on Surfboard design then perhaps anybody.
Donald Takayama did a lot to bring back the Longboard He was producing a modern Longboard in the late 1970s early 1980s I had one and around 84-85 it was my fun small wave board.
The best 1960's Longboard for me was thea Yater Spoon then a Rick UFO. Best of the short boards was a Sunset swallowtail winger. another I really loved was a Caster round pintail winger made for point breaks. For Hawaii my all time favorit was a Brewer Gun