I wrote to someone and this is the information she gave me. 1916-1947 Illinois death index. Which is on Micro film. She also said there was an older one for Cook County, thinks it runs from1879 or 69 thru 1916. That one is at the FHC along with an ILL. 1916-1938 one. Arlington Heights Library has the 1916-1947 ILL. death Index. Should contact Springfield or maybe online ILL GenWeb. I don't have an address for that one. Sharon D.