Johs Janssen – Adress-Buch von Frankfurt a. M. 1877
| Given name | Johs |
|---|---|
| Family name | Janssen |
| Title | Dr. phil. |
| Occupation | Prof. a. Gymnas. |
| Address | schöne Aussicht 91 |
| Place | Frankfurt |
| GOV identifier | FRAURTJO40IC |
| Book | Adress-Buch von Frankfurt a. M. 1877 |
| page | 203 |
| Year | 1877 |