Hellmut Merckens – Adreßbuch der Stadt Düren 1910
| Given name | Hellmut |
|---|---|
| Family name | Merckens |
| Occupation | Ingenieur |
| Address | Stürtzstr. 4 |
| Place | Düren |
| GOV identifier | DURRENJO30FT |
| Book | Adreßbuch der Stadt Düren 1910 |
| page | 81 |
| Year | 1910 |
| Given name | Hellmut |
|---|---|
| Family name | Merckens |
| Occupation | Ingenieur |
| Address | Stürtzstr. 4 |
| Place | Düren |
| GOV identifier | DURRENJO30FT |
| Book | Adreßbuch der Stadt Düren 1910 |
| page | 81 |
| Year | 1910 |