↑ "Ohio Marriages, 1800-1958," database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XDVX-FYY : 8 December 2014), Thomas Keyse and Mary Clay, 19 Jul 1870; citing Seneca,Ohio, reference ; FHL microfilm 0388637 V. 6-6 1/2.
↑ "Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X6Z9-YXT : 8 December 2014), Mary Clay in entry for Harriett Babcock, 28 Jul 1930; citing Green Creek, Sandusky, Ohio, reference fn 44694; FHL microfilm 1,992,173.
↑ U.S., Social Security Applications and Claims Index for Oscar Lewis Keyse, birthplace: Clyde, Ohio, birthdate as listed
↑ "Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X6J1-NSB : 8 December 2014), Mary Clay in entry for David Henry Keyse, 09 Jan 1947; citing , reference Certificate; FHL microfilm 2,372,968.
↑ "Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:XZD6-F88 : 8 December 2014), Mary Clay in entry for Minnie Ellen Keyse Bose, 28 Jul 1937; citing Sandusky, Ohio, reference fn 46887; FHL microfilm 2,023,502.
↑ "Ohio, County Marriages, 1789-2013," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X8NZ-HYJ : 8 December 2014), Mary Anna Clay in entry for Clarence Bennegen Royer and Della Arville Keyse, 24 Dec 1905; citing Sandusky, Ohio, United States, reference v16, cn 1853; county courthouses, Ohio; FHL microfilm 506,648.
↑ "Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X6Q7-DHZ : 8 December 2014), Mary Clay in entry for Harvey George Keyse, 12 Apr 1933; citing Lakewood, Cuyahoga, Ohio, reference fn 21219; FHL microfilm 1,992,872.
↑ "United States Census, 1900," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MM6Y-JD9 : accessed 11 February 2017), Mary A Keyse in household of Thomas Keyse, Green Creek Township Greenspring village, Sandusky, Ohio, United States; citing enumeration district (ED) 79, sheet 10A, family 234, NARA microfilm publication T623 (Washington, D.C.: National Archives and Records Administration, 1972.); FHL microfilm 1,241,318.
↑ "United States Census, 1910," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MLD3-P88 : accessed 11 February 2017), Mary Keyse in household of Thos B Keyse, Green Creek, Sandusky, Ohio, United States; citing enumeration district (ED) ED 117, sheet 14A, family 350, NARA microfilm publication T624 (Washington D.C.: National Archives and Records Administration, 1982), roll 1227; FHL microfilm 1,375,240.
↑ "Ohio Deaths, 1908-1953," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:X82P-1LX : 8 December 2014), Thomas B. Keyse in entry for Mary Ann Keyse, 22 Dec 1919; citing Clyde, Sandusky, Ohio, reference fn 71472; FHL microfilm 1,984,986.
↑ Clay-1470 was created by Marie b through the import of BerningOhio.ged on Aug 30, 2014. This comment and citation can be deleted after the biography has been edited and primary sources are included.
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DNA Connections
It may be possible to confirm family relationships with Mary Ann 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 Ann: