My mother was a Jorsch and in memory of her I tried to find every Jorsch I could and enter them into Wikitree. I did all the normal US searches - Ancestry, FamilyTree, Find a Grave, and google search etc. and entered every record i could find, I have now given up on entering more. So far, Wikitree has only 94 Jorschs. I have found 2 family lines and spattering of single families. 1 line (possibly 2 brothers) came from Schaeffer, Russia and the other (my line) from around Belgium. see one name study below.
So if you have access to European records and take on the search, it would be gratefully appreciated. I think it would be a fun little project with such unique name.