I've apparently missed the beginning of this thread, because I 
don't know what question was being answered.  However -- how 
can Sellers not "remember" his source?  It should be in the 
footnotes.  If not, in the bibliography.  There is no footnote for 
this paragraph?   
     (P.S., the Philadelphian was wrong, but that's a separate 
issue.) 
     -- Mary Schweitzer