FamilySearch (https://familysearch.org/ark:/61903/1:1:F37V-TLS : 21 September 2017), Otto Robert Unger and Mary Elizabeth Slone, 18 Oct 1941; citing Marriage, Glendive, Dawson, Montana, county courthouses, Montana; FHL microfilm 1,905,435. (Deed) - Mary Elizabeth Slone, "Montana, County Marriages, 1865-1950" » Quellen » Généalogie Hoffet » Genealogie Online"> FamilySearch (https://familysearch.org/ark:/61903/1:1:F37V-TLS : 21 September 2017), Otto Robert Unger and Mary Elizabeth Slone, 18 Oct 1941; citing Marriage, Glendive, Dawson, Montana, county courthouses, Montana; FHL microfilm 1,905,435. (Deed) - Mary Elizabeth Slone, "Montana, County Marriages, 1865-1950" » Quellen » Généalogie Hoffet » Genealogie Online">
"Montana, County Marriages, 1865-1950," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:F37V-TLS : 21 September 2017), Otto Robert Unger and Mary Elizabeth Slone, 18 Oct 1941; citing Marriage, Glendive, Dawson, Montana, county courthouses, Montana; FHL microfilm 1,905,435. - Mary Elizabeth Slone, "Montana, County Marriages, 1865-1950"
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