| Notes |
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:J4JJ-LGQ : 4 April 2019), Johann Friedrich Hartmann in entry for Friederike Dorothee Auguste Hartmann, 5 Mar 1843; citing Christening, Wusterhausen, Wusterhausen Dosse, Ruppin, Brandenburg, Preußen, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,675.
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:J3K2-VX9 : 4 April 2019), Sophie Rosentreter, 1 Feb 1865; citing Death, Brandenberg, Langenberg, Mettmann, Rhein, Preußen, Deutschland, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,676.
- https://www.ancestry.com/imageviewer/collections/2116/images/4110217_00382
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