I am looking for the relationship between Moritz Ostermann, born 1863 as son of merchant Isidor Ostermann in Meddersheim, and merchant Jakob Ostermann, born 1872 in Meddersheim. I suggest that they were brothers but have not found sourced evidence for that assumption. Thanks for any hints and links!
We already know the parents of Moritz Ostermann:
And we know the parents of Jacob Ostermann:
So they were brothers !!!
Edit: Okay, I reveal the source …
Suche nach jüdiSchen Spuren – StolperSteine in Bad SoBernheim
www.alemannia-judaica.de/meddersheim_friedhof.htm
Hier is the cemetary of Meddersheim with the grave stones of Isidor Ostermann and Franziska Ostermann. The one of Franziska is readable.
Isidors gravestone is better readable on https://www.blitzlichtkabinett.de/friedhöfe/friedhöfe-in-rlp-iv/.
Moritz time as teacher in Bochum: "Mit der Zunahme der jüd. Bevölkerung stieg auch die Zahl der schulpflichtigen Kinder, so dass 1882 ein zweiter Lehrer eingestellt wurde: Moritz Ostermann aus Meddersheim in der Pfalz, der bis 1926 in Bochum unterrichtete (gest. 1929)."
https://www.lwl.org/hiko-download/HiKo_Neue_Folge_012_(2021).pdf
I don't have a primary source. There are some hints in the document or elsewhere: