- Rojen v letu 1867 [in (place)] Darmstadt, Ukraine
- Umrl
Poroke in otrok
- se je poročil z Maria Wetzel 1871-, hčerka od Jakob Wetzel 1844-1872 in Christina Müller , z enim otrokom
:
- Rosalie 1903
[individual notes]
EWZ Index for Miscellaneous Films 207 (MHSBC) Koch, Johannes 1867 Darmstadt A3342-EWZ50-B002 2520 Koch, Maria 1871 Ludwigstal, Geb. Saporoshje A3342-EWZ50-B002 2520 geb. Wetzel