New York State, Marriage Index, 1881-1967 [database on-line]. Lehi, UT, USA: Ancestry.com Operations, Inc., 2017. George M. Herse and Mary L. Calkins, Grindstone, New York, 20 Jan 1904, Certificate Number 1098.
"New York State Census, 1905," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:SPNL-M91 : 20 July 2018), Mary L Herse in household of George M Herse, Alexandria, , Jefferson, New York; citing p. , line , various county clerk offices, New York; FHL microfilm 1,002,843.
"New York State Census, 1915," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:K9P7-L7L : 8 November 2014), Mary J Herse, Madrid, St Lawrence, New York, United States; from "New York, State Census, 1915," database and images, Ancestry (http://www.ancestry.com : 2012); citing p. 23, line 19, state population census schedules, 1915, New York State Archives, Albany.
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DNA Connections
It may be possible to confirm family relationships with Mary by comparing test results with other carriers of her ancestors' mitochondrial DNA.
However, there are no known mtDNA test-takers in her direct maternal line.
It is likely that these autosomal DNA test-takers will share some percentage of DNA with Mary: