| Name | Role | Place | Source | |
|---|---|---|---|---|
| Alfred Dannenberg | Registered | 1895 | Leeuwarden | Population register |
| Alfred Wolfgang Dannenberg | Registered | 1928 | Leeuwarden | Population register |
| Alfred Wolfgang Dannenberg | Registered | 1895 | Leeuwarden | Population register |
| Alfred Wolfgang Dannenberg | Deceased | 1939 | Leeuwarden, Riga | Civil registration deaths |
| Alfred Wolfgang Dannenberg | Groom | 1924 | Leeuwarden, Riga Letland | Civil registration marriages |
| Alfred Wolfgang Dannenberg | Mention | 1924 | Leeuwarderadeel, Leeuwarden | Notarial records |
| Alfred Wolfgang Dannenberg | Mention | 1929 | Leeuwarderadeel, Leeuwarden | Notarial records |
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