"Illinois, Cook County, Birth Certificates, 1871-1940," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:NQT1-D97 : 18 May 2016), Henry William Anton Hirschbein in entry for Henry William Anton Hirschbein, 29 Oct 1886; Chicago, Cook, Illinois, United States, reference/certificate 118007, Cook County Clerk, Cook County Courthouse, Chicago; FHL microfilm 1,287,859.
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