Bobad sez:"How the heck did you do that?"
Ya gotta have a really good text editor that facilitates search and replace operations using grep pattern matching.
Essentially, the process was:

1. find all sequences of two or more capitalized words
   
2. list these sequences, discarding all the other text
   
3. sort the list and eliminate duplicates
   
4. manually delete each item that doesn't look like a name
   
5. arrange each name into [lastname, othernames] format
   
6. sort by lastname
   
7. rearrange names back to original format

Everything but step 4. is readily done by search and replace operations

—BK