The General Assembly of the State of Illinois passed a law in 1843 for the voluntary registration of birth and death of the citizens at county level, but this voluntary record does not yield much up to expectation, as some of the counties record was not properly maintained.
Then an Act was passed on in 1877 through which a body was created with the name of State Board of Health, with a responsibility of recording birth and death occurring within the States. According to this act, birth and deaths in each county must be reported to the county clerks, which will be recorded in a register, but again this Act was implemented as a voluntary rather then mandatory and non-compliance of the Act does not imposed any penalty, so, most of the birth and deaths in the state are often not recorded.
In order to effective implementation of the vital records of the States of Illinois, the system of recoding births and deaths were revised in 1915, and the duty of recording births and death were assigned to the local registrars and sub registrars who were responsible to report both the clerk and State Department of Health.
Since 1915, Illinois Department of Public Health collected more then 27 million records of birth death. death certificate of the State of Illinois shows the name of the deceased, Age of the deceased, sex, place of birth, date of birth and death, marital status, occupation of the deceased and the signature of physician.
Illinois State Vital Records
Office Division of Vital Records
605 West Jefferson Street
Springfield, IL 62702-5097