Werner, go to this site for information about getting copies of the marriage
records:
http://www.sos.state.il.us/departments/archives/marrcopy.html.
For certified copies you must go to the county. For uncertified copies you
can try the
Illinois Regional Archives Depositories which has:
COOK MARRIAGE LICENSES 1871 to 1900 Department: NEIU; Accession
number: 7/0039/02
COOK MARRIAGE RECORD INDEX 1871 to 1904 Department: NEIU; Accession
number: 7/0039/01
They say:
Requesting a Search
IRAD welcomes mail and telephone requests from researchers interested in
genealogy and local history. The regional depositories are unable to receive or
send requests by e-mail. Please direct inquiries to the depository holding the
records you wish to have searched.
NEIU is Northeastern Illinois University at this address:
Illinois Regional Archives Depository
Ronald Williams Library
Northeastern Illinois University
5500 N. St. Louis Avenue
Chicago, IL 60625-4699
Telephone: (773) 442-4506
The searches are free and there is a small charge for the copies.
You may not find all the information you were looking for on the licenses,
but I have found them very helpful.
Nancy Pundsack