Arthur Schlesinger Jr. devotes a substantial part of the first book of his projected four volume "Age of Roosevelt" to dispelling these myths. This involves an inquiry into the origins of the New Deal practices and principles, an investigation of conditions - chiefly economic - in the Twenties and a thorough re-evaluation of the Hoover Administration.
One of the valuable features of this book is the emphasis the contributions of political theory by intellectuals, philosophers and scholars. It does not purport to be a history of ideas, but it is very much a history that addresses itself to ideas.
I found Henry Steele Commager's 1957 review at NYTimes. Interesting to see what historians thought of the book at the time of its publication.