Clemens Mertens – Dürener Adressbuch 1882
| Given name | Clemens |
|---|---|
| Family name | Mertens |
| Occupation | Ingenieur |
| Address | Tivolistr. 14 |
| Place | Düren |
| GOV identifier | DURRENJO30FT |
| Book | Dürener Adressbuch 1882 |
| page | 49 |
| Year | 1882 |
| Given name | Clemens |
|---|---|
| Family name | Mertens |
| Occupation | Ingenieur |
| Address | Tivolistr. 14 |
| Place | Düren |
| GOV identifier | DURRENJO30FT |
| Book | Dürener Adressbuch 1882 |
| page | 49 |
| Year | 1882 |