Sparkman & Stephens
The Register of Wooden Boats lists information on wooden boats 10′ and above in overall length. It came into being after (and somewhat because) the annual Lloyd’s Register of American Yachts and the subsequent short-lived North American Yacht Register ceased publication.
This is a work in progress and boats are being added continually.
To refine your search, add quote marks. If you search Free Spirit, you will get all the listings which include free or spirit. To refine, search “Free Spirit” and you’ll see just Free Spirit results.