Hi Lora: This might help you.I retained a note regarding someone who was looking for a death record in Chicago. The reply was... Write or call the Illinois Regional Archives Depository Ronald Williams Library, 5500 N St Louis Ave, Chicago, Ill 60625-4699
They will check all death records and send you a copy at no charge. Be sure to give as much info as you can for her.
Whether the above information is still valid today, I don't know but it's worth a shot.