| Notes |
- "Deutschland, Preußen, Brandenburg und Posen, Kirchenbuchduplikate, 1794-1874," database with images, FamilySearch (https://familysearch.org/ark:/61903/1:1:JQ64-5YR : 4 April 2019), Dorothee Rosentreter in entry for Johann Christoph Mueller, 31 Oct 1841; citing Marriage, Brandenburg, Heiligenbeil, Ostpreußen, Preußen, Deutschland, p. , Brandenburgisches Landeshauptarchiv (Brandenburg State Archives), Potsdam; FHL microfilm 2,418,016.
- https://www.ancestry.com/imageviewer/collections/2116/images/4312601_00324
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