Familie: Halvor Christiansen Heyerdahl / Maren Christine Elizabeth Cornisch (F6418)
g. Ca 1777Christian Halvorssøn Heyerdahl (1723-1802) 
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Anne Margrethe Hansdatter Fremming (1725-1748)
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| Hans Eilert Heyerdahl (1746-1805) |
| Johan Christian Wilhelmsen Cornisch (1719-1773)
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| Edle Valentine Pedersen Otzen (1733-1781)
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| Wilhelmina Johansdatter Cornish (1755-1772) |
Peter Marqvart Cornisch (1757-1827)  |
| Elisabeth Christine Cornish (1767- ) |
| Halvor Christiansen Heyerdahl (1748-1819)
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| Maren Christine Elizabeth Cornisch (1753-1829)
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| Johan Cornisch Heyerdahl (1779-1838) |
| Edle Valentine Halvorsdtr. Heyerdahl (1783-1870) |
| Niels Halvorsen Roth Blix Heyerdahl (1785-1829) |
| Hans Olaus Fremming Heyerdahl (1788-1788) |
| Hans Olai Fremming Heyerdahl (1789-1866) |
| Mette Cathrine Heyerdahl (1795-1855) |