Here are a few articles I have found on the web about the Whitby 42. I have tried to credit those who originally wrote the material.
The Whitby 42
A many-faceted boat known by many names.
By Ed Lawrence
Good Old Boat, Sep/Oct 2005
Blue water boats has a review and summary of the boat.
http://www.cruisersforum.com/forums/f47/whitby-42-brewer-owners-association-20071.html
A well represented on line forum with many Whitby 42 owners.
The Incredible Hull. An amazing blog about the complete restoration of a Whitby 42. His work and his blog are really well done. Huge amounts of information and pictures over the last 4 years of his work.