
| Alexander Coenraad Arthur Baron VAN DEDEM | |
| G: | 08 aug 1867 |
| Dalfsen | |
| O: | 23 mrt 1948 |
| Bloemendaal | |
1886-1963
| Anna Elisabeth Henriëtte ZUBLI | |
| G: | 07 jan 1886 |
| Amsterdam | |
| H: | 05 sep 1911 |
| Amsterdam | |
| O: | 27 jan 1963 |
| Bloemendaal | |
1869-1937
| Floris Hendrik VAN DEDEM | |
| G: | 11 feb 1869 |
| Dalfsen | |
| O: | 24 sep 1937 |
| Ruinen | |
| Cornelia Johanna Elisabeth VAN HEECKEREN VAN BRANDSENBURG | |
| G: | 09 feb 1876 |
| Utrecht | |
| H: | 09 feb 1905 |
| Utrecht | |
| O: | 16 okt 1956 |
| Zeist | |
1871-1953
| baron Eduard VAN DEDEM | |
| G: | 18 mrt 1871 |
| Dalfsen | |
| O: | 04 apr 1953 |
| 's-Gravenhage | |
| Gabriëlle Jeannette Josina GODIN DE PESTERS | |
| G: | 12 apr 1881 |
| Amersfoort | |
| H: | 29 feb 1912 |
| Arnhem | |
| O: | 18 apr 1953 |
| 's-Gravenhage | |
1916-2002
| baron Wicher Onco VAN DEDEM | |
| G: | 26 jan 1916 |
| Amersfoort | |
| O: | 02 mei 2002 |
1919-2011
| Baronesse Helena Jacoba BOOMSMA | |
| G: | 08 nov 1919 |
| Amsterdam | |
| H: | 28 aug 1946 |
| Leiden | |
| O: | 18 dec 2011 |
1874-1931
| Baron Boudewijn Willem VAN DEDEM | |
| G: | 25 dec 1874 |
| Vollenhove Stad | |
| O: | 21 nov 1931 |
| Amersfoort | |
1875-1954
| Charlotte Gerardina SERVATIUS | |
| G: | 13 apr 1875 |
| Dwingeloo | |
| H: | 09 jul 1903 |
| Assen | |
| O: | 21 feb 1954 |
| Amersfoort | |
| Suzanna Leonora Baronesse VAN DEDEM | |
| G: | 12 jul 1879 |
| Ommen Stad | |
1876-
| Percy John EDWARDS | |
| G: | 13 feb 1876 |
| Hounslow (GB) | |
| H: | 22 sep 1904 |
| Wageningen | |
1842-1932
| Eva Roelina WESTRA | |
| G: | 17 aug 1842 |
| Dwingeloo | |
| O: | 27 jun 1932 |
| Bloemendaal | |
1840-1911
| baron Godert Willem VAN DEDEM | |
| G: | 17 dec 1840 |
| Milligen (Dalfsen) | |
| H: | 08 nov 1866 |
| Assen | |
| O: | 18 mrt 1911 |
| Milligen (Dalfsen) | |
| Susanna Leonora VAN HOLTHE | |
| H: | (?) |