Came across this site as I was doing a little research - it's about an upcoming "reunion" of surfers from Nantasket Beach, Mass, 1966-1970..
Sifting thru the photos and stuff there's all sorts of shots of great boards and waves and stories - wonder if it'd be even remotely possible to contact surfers from Rock from that era and do something similar? Even if it was just to collect the images and stories and history, it'd be amazing...
http://surf68.com/Home.html