With regard to your question about whether Madison wrote THE FEDERALIST, the 85 newspaper essays published to explain the new Constitution to ordinary farmers and citizens of the day, one great source for information about them--the text, the writers, etc.--can be found
here. Michael Chadwick is running for Congress in Idaho, and his web site contains a wealth of documents from the nation's founding, the writings and speeches of the Founders, as well as most of the speeches of Ronald Reagan. Just go to the "Home" page and click on the appropriate tabs on the Left side of the page.