The CD purchased by this author that contained the full works of William Wade Hinshaw’s Encyclopedia of American Quaker Genealogy included a file called names.txt which proved to be a list of over 3,500 unindexed names. These names all appear on the extended “leaves” of the following pages: Volume I page 90, Volume V pages 544, 822 and 963. (These “extended leaves are pages that could be numbered 90a, 90b, 90c, etc.)
79 of the unindexed people have the surname Pemberton.
You can see the entire list preceded by a more detailed explanation of what is there and how it came to be here: http://pembertonfamily.com/pfwwhtml/IndexOfNamesNotIndexed.html.