Familie: Heinrich Diedrich Gerdes / Louise Mariechen Bernhardine Niemann (F46)
verh. 9 Aug 1947 | Gerd Harms Gerdes (1880-1952) 
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 | Anna Margarete Rüstmann (1902-1990)
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 | Anna Johanna Gerdes (1932-2009)  |
| Adda Jesine Gerdes (1934-1935) |
 | Adolf Hermann Gerdes (1935-2025) |
 | Insine Gerdes (1941-2024) |
| Ludwig Wilhem Bernhard Niemann (1894-1975) |
| Mariechen Henriette Müller (1907-1985) |
 | Heinrich Diedrich Gerdes (1926-2020)
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| Louise Mariechen Bernhardine Niemann (1927-2005)
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| Gary Louis Gerdes (1959-2014) |
| Mark Robert Gerdes (1967-1983) |