Margaret was born about 1834. She is the daughter of Humphrey Owen.
"United States Census, 1850," database with images, FamilySearch (https://www.familysearch.org/ark:/61903/1:1:MX3Q-NX6 : 21 December 2020), Margaret Owen in household of Humphry A Owen, Ellsworth, Mahoning, Ohio, United States; citing family , NARA microfilm publication (Washington, D.C.: National Archives and Records Administration, n.d.).
"United States Census, 1860", database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:MCG2-L5R : 18 February 2021), Margaret Owen in entry for Humphey Owen, 1860.
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