2005 (UTC) 
 :::A quick read-through indicates that all the books by Asimov himself (including those edited by family members) are cited in the article.  The Gunn book is cited, but the Patrouch and White are not.  I have read John Jenkins's summary of the White biography, but not the book itself; maybe somebody who has the real thing (or who doesn't mind secondary secondary sources) can incorporate some of that material.   20:19, 30 Apr