"Illinois, Chicago, Catholic Church Records, 1833-1925,"
"United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MSQV-22L : accessed 26 June 2018), Henry Kirsh in household of Peter Kirsh, Precinct 11 Jefferson Township Chicago city Ward 27, Cook, Illinois, United States; citing enumeration district (ED) 828, sheet 3A, family 45, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,240,278.
"Illinois, Cook County Marriages, 1871-1920," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:N7CW-QHZ : 10 March 2018), Henry M. Kirsch and Clara Lein, 18 Jun 1910; citing Chicago, Cook, Illinois, 536851, Cook County Courthouse, Chicago; FHL microfilm 1,030,479.
It may be possible to confirm family relationships with Henry by comparing test results with other carriers of his Y-chromosome or his mother's mitochondrial DNA.
However, there are no known yDNA or mtDNA test-takers in his direct paternal or maternal line.
It is likely that these autosomal DNA test-takers will share DNA with Henry: