You can try counties Historical Society, many hold these books, along with some cemetery books & may have a on-line search engine. Library may hold obituaries, sometimes libraries & Historical Societies work together. I know such is as Olmsted County historical Society & Rochester, MN Library does.
I hope this widens your scope & have success,
Cathy Walters, Elgin, MN
GINSBERG,PLATSKY of Bridgeport,CT to Vilna, Lithuania & COHEN of Vilna, Lithuania
AncestryDNA & soon MyHeritageDNA & GEDmatch A059333