| | Karl Heinz Heldtberg 1919–1981 | | | | Friedrich Ferdinand Nicolai Heldtberg 1891–… Mertha Cathrine Jensen 1894–… Louise Caroline Seelk 1902–… | | | | Anna Margrethe Madsen Heldtberg 1865–1936 | | | | Niels Madsen Heldtberg 1830–1878 Anna Margaretha Matzen Petersen 1828–1893 | | |
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| | | Friedrich Wilhelm Johan Seelk 1875–1914 Auguste Sopfie Ludvigsen 1875–… |
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