Johann Friedrich Helsberg – Kölner Adreß-Buch 1846
| Given name | Johann Friedrich |
|---|---|
| Family name | Helsberg |
| Address | Am Klingelpütz 21 |
| Place | Köln |
| GOV identifier | KOLOLNJO30LW |
| Book | Kölner Adreß-Buch 1846 |
| page | 221 |
| Year | 1846 |
| Given name | Johann Friedrich |
|---|---|
| Family name | Helsberg |
| Address | Am Klingelpütz 21 |
| Place | Köln |
| GOV identifier | KOLOLNJO30LW |
| Book | Kölner Adreß-Buch 1846 |
| page | 221 |
| Year | 1846 |