| Kolthoff, Anni Marie Martha | Prieser | Kolthoff Karl August | 1973 |
| Kolthoff, August Julius Conrad | 1938 | ||
| Kolthoff, Doetje | Germer a ad | Kolthoff Friedrich | 1940 |
| Kolthoff, Edmund | 1967 | ||
| Kolthoff, Elise Ella Hedwig | Heyne | Kolthoff August Julius Conrad | 1940 |
| Kolthoff, Friederike Margarethe | Netzel | Kolthoff Johann Heinrich Ferdinand | 1957 |
| Kolthoff, Friedrich | 1905 | ||
| Kolthoff, Friedrich Hendrik | 1958 | ||
| Kolthoff, Joh. Hinrich Ferdin. | 1899 | ||
| Kolthoff, Johann Heinrich Ferdinand | 1927 | ||
| Kolthoff, Johanna Juliane | Rolfs | Kolthoff Johann Heinrich Ferdinand | 1917 |
| Kolthoff, Juliane Henriette | Böcker | Kolthoff Johann Heinrich Ferdinand | 1901 |
| Kolthoff, Sophie Marie | 1917 |