| Notes |
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:J7V1-58X : 4 April 2019), Caroline Rosentreter in entry for Wilhelm Herrmann Friedrich Ehrendreich, 14 Nov 1866; citing Christening, Nietwerder, Ruppin, Brandenburg, Preußen, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,655.
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:J7V1-VG3 : 4 April 2019), Caroline Marie Elisabeth Rosenträger in entry for Carl Christian Wilhelm Ehrendreich, 25 Nov 1862; citing Christening, Nietwerder, Ruppin, Brandenburg, Preußen, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,655.
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:J7V1-HLS : 4 April 2019), Marie Elisabeth Caroline Rosenträger in entry for Johann Christian Friedrich Ehrendreich, 1853; citing Marriage, Nietwerder, Ruppin, Brandenburg, Preußen, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,655.
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:JQRV-4DZ : 4 April 2019), Marie Elisabeth Caroline Rosentraeger in entry for Joachim Christian Friedrich Ehrendreich, 25 Nov 1853; citing Marriage, Karwe, Ruppin, Brandenburg, Preußen, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 1,334,644.
- https://www.ancestry.com/imageviewer/collections/2116/images/4110162_00373
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