That "Van de Stadt" was Starbuck, singlehanded Transpac vet. When I bought her in '98?? I contacted the VDS design office to purchase hull/line drawing of the boat. I ended up buying the entire run of drawings for the build. The guy that responded to me at the office told me the Black Soo was being designed when he first started working there, very cool.
I did a TON of work on Starbuck in the early '90s for sailmaker Don Goring, who had recently bought her back. We put in new floor timbers, coamings and added the " sugar Scoop" on the transom