Illinois State Death Certificates 

 Samples:

• Samples of Illinois State Death Certificates from 1916-1947
• A Chicago, Illinois Death Certificate from 1910
  

Articles:

• Using the Illinois State Death Certificate Index 1916-1947
• Follow up article to "Using the Illinois State Death Certificate Index"
  
• Analyzing a 1910 Chicago, Illinois Death Certificate

• 1916- 1950
  
• pre-1916
  

 Obtaining Copies of Illinois Death Certificates (two researchers offsite which I have used--both are low-priced and efficient):

• Cook County
• Statewide