Piecing Together a Photographer's Collection in El Paso

There is a great story on the front page of today's Wall Street Journal.  "This Detective Story in Old El Paso is Written in Photos" by Stephanie Simon tells how a librarian named Claudia Rivers is trying to identify the 50,000 unidentified portraits in photographs taken by the Casasola photography studio.  It's a great story that won't be online for long.  There is an accompanying video but I couldn 't get the link to work.