Hi, I had the same problem as you did. I live in Louisiana but my great grandparents lived in Illinois. I sent off to the Illinois State Archives to see if they could find a date of death for my great grandparents. They weren't in their index. I finally found out that they had died in Alton and I called the cemetaries. I finally found them. I finally found their date of death. Madison County Courthouse has my great grandmothers dc. I haven't been able to find my great grandfathers yet. Good Luck Patti