↑ "Illinois Mortality Schedules, 1850-1880," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:QL91-64H9 : 16 March 2018), Marion Picken, death Apr 1880, Illinois, United States; citing Pub. T1133 Nonpopulation Census Schedules for Illinois, 1850-1880., Film 64, NARA microfilm publications T1133 (Washington, D.C.: National Archives and Records Administration, n.d.).; FamilySearch digital folder 007282689.
Find A Grave: Memorial #53435106 Find A Grave, database and images (https://www.findagrave.com : accessed 22 July 2018), memorial page for Marion Picken (5 Apr 1858–4 Apr 1880), Find A Grave Memorial no. 53435106, citing Scottish Cemetery, Caledonia, Boone County, Illinois, USA ; Maintained by Amelia Crombie-Christy (contributor 46861625) .
It may be possible to confirm family relationships with Marion 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 DNA with Marion: