Sophia was born after 1873. She was the daughter of Unnamed Father Bergman. She passed away after 1946.
First-hand information as remembered by Jay Barry, Friday, April 24, 2015.
"Wisconsin Marriages, 1836-1930", database, FamilySearch (https://familysearch.org/ark:/61903/1:1:XRVC-BMX : 30 January 2020), Carl Bergman in entry for Sivert Olson, 1892.
https://www.findagrave.com/memorial/21288162
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B > Bergman | O > Olson > Sophia (Bergman) Olson
Categories: Trinity Lutheran Cemetery, Ellison Bay, Wisconsin