Rudolf Schwarz b 1851 Kassel Germany

Hello,

I’ve hit a dead end in my research. I’m looking for the town/village where Rudolf Schwarz was born. My father said he was from Kassel Germany but I contacted them and they need the town/village.

Rudolf Schwarz b. Dec 22 1851 Germany
d. Dec 10 1932 NJ, USA

Father Henry possibly Henrich Schwarz
Mother Anna Catherine Beck

Don’t have birthdates for either of them.

I have some theories, if you would think they would help.