The National Pearson Yacht Owners Assoc. still exists. Run by a fellow named Bill Lawrence. I hear mixed feelings about it.
As far as I can tell, Cal-Pearson actually only produced maybe two boats. Rumors have it at a higher number, but I''ve only heard of two real boats. One is a P-38-2 that''s been kicking around Annapolis (it was in the Annapolis show a couple of years.) The other is a P-35, which is just the old P-34 with a scoop stern. It was for sale in Texas at one time, was in charter service there. At any rate, that company was underfunded and out classed.
Agreed on Bill Shaw. He drew beautiful lines to my eye, and also slippery fast hulls for the most part (other than some models that were pure cruising boats.) I talk to him on the phone every so often. One of the nicest guys around. He does deserve more credit, but then I bleed Pearson blue.