I'm trying to place where Rosenhiem, Russia would be. My GG-Grandfather Fred (Fredrick) Grossman and brother in law Alexander Goebel came from Rosenhiem. I can place them first in the US in 1920 in Wisconsin but when I search for 1920 Russian Maps to find Rosenhiem, I find it's really in Germany.
Does anyone have anything or can point me to a website to help confirm this? My search dead ends here in the states in 1920 so I need to find my next local but I'm not sure where I should contact, Russia or Germany.
Any help is appreciated!