H. D. Umbstaetter
Source: "H. D. Umbstaetter Bibliography." Author Wars, https://authorwars.com/authors/h-d-umbstaetter.html".
Titles:
Magazine Editor
- Unknown. The Black Cat - 1896
- Unknown. The Black Cat - 1897
- Unknown. The Black Cat - 1898
- Unknown. The Black Cat - 1899
- Unknown. The Black Cat - 1900
- Unknown. The Black Cat - 1901
- Unknown. The Black Cat - 1902
- Unknown. The Black Cat - 1903
- Unknown. The Black Cat - 1904
- Unknown. The Black Cat - 1905
- Unknown. The Black Cat - 1906
- Unknown. The Black Cat - 1907
- Unknown. The Black Cat - 1908
- Unknown. The Black Cat - 1911