Mary Krusenska???

Looking for any information on the Krusenska/Krusinsky line.
Mary b bet 1886-1888 in Ohio m Casimir Twardowski. They lived in Chicago, IL. I am at a dead end with Mary can't seem to get a correct spelling or any hits on her last name. I know "ska" is female and "ski/sky" are male. Any and all help would be appreciated.