Otto Wallach – Adress-Buch der Stadt Bonn 1885
| Given name | Otto |
|---|---|
| Family name | Wallach |
| Title | Dr. |
| Occupation | Professor der Chemie |
| Address | Meckenheimerstrasse 91 |
| Place | Bonn |
| GOV identifier | BONONNJO30NR |
| Book | Adress-Buch der Stadt Bonn 1885 |
| page | 215 |
| Year | 1885 |