Illinois, Cook County Marriages, 1871-1920 Description Name index of marriage licenses and returns recorded at Cook County, Illinois - including the City of Chicago. Learn more » Search Collection First Names Last Names Restrict records by: Film Number x Film Number Search with a life event: Birth Marriage x Birth Birthplace Birth Year (Range) x Marriage Marriage Place Marriage Year (Range) Search with a relationship: Spouse Parents x Spouse Spouse's First Names Spouse's Last Names x Parents Father's First Names Father's Last Names Mother's First Names Mother's Last Names Match all terms exactly Loading Source Information "Illinois, Cook County Marriages, 1871-1920." Index. FamilySearch. http://FamilySearch.org : accessed 2014. Citing Cook County Clerk. Cook County Courthouse, Chicago.