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Harm Sissing
| First Name | Harm |
| Last Name | Sissing |
| Date of Birth | 14.02.1904 |
| Place of Birth | Uithuizermeeden |
| Country of Birth | Niederlande |
| Date of Death | 01.12.1944 |
| Place of Death | Außenlager Ladelund |
| Occupation | Betriebsführer |
| Prisoner Number | 56655 |
