No biography yet.[1] Can you add information or sources?
Sources
↑ Martens-334 was created by Paul Selk through the import of Paulsanc.GED on Jun 26, 2014. This comment and citation should be deleted after a short biography has been added and primary sources have been cited.
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DNA Connections
It may be possible to confirm family relationships with Gretje by comparing test results with other carriers of her 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 Gretje: