"Illinois, Cook County, Birth Certificates, 1871-1940," database, FamilySearch (https://familysearch.org/pal:/MM9.1.1/NQ55-3MS : 18 May 2016), John Henry Byrne in entry for Grace Byrne, 04 Jun 1883; citing Chicago, Cook, Illinois, United States, reference/certificate 28014, Cook County Courthouse, Chicago; FHL microfilm 1,287,831.
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