The official web site for Spalding Gray by yours truly, John Boland, webmaster and webmanager for the Estate of Spalding Gray

The best web page for author Janwillem van de Wetering (and excellent book store) 
http://www.dpbooks.com/vandewet.htm
Sadly this site is no more. And I think the book store is gone. The website had photos of his amazing outdoor scupltors made from things found on his ocean beach. The fate of these scupltures and his paintings is sadly unknown.
You can find his wikipedia page or a rare interview with him by doing a web search.