Ancestry.com, Cook County, Illinois, Birth Certificates Index, 1871-1922 (Online publication - Provo, UT, USA: Ancestry.com Operations, Inc., 2011.Original data - "Illinois, Cook County Birth Certificates, 1878–1922." Index. FamilySearch, Salt Lake City, Utah, 2009. Illinois. Cook County Birth Certificates, 1878–1922. Illinois D)

• Title	Ancestry.com, Cook County, Illinois, Birth Certificates Index, 1871-1922 (Online publication - Provo, UT, USA: Ancestry.com Operations, Inc., 2011.Original data - "Illinois, Cook County Birth Certificates, 1878–1922." Index. FamilySearch, Salt Lake City, Utah, 2009. Illinois. Cook County Birth Certificates, 1878–1922. Illinois D)
  Short Title	Cook County, Illinois, Birth Certificates Index, 1871-1922
  Repository	Ancestry.com
  Source ID	S31
  Linked to	George W Weitendorff