Good God, I don't want to think about how many times she may have been married, LOL. For now, I am sticking with she married Darryl Lubahn on 11/4/1955 and then divorced, married Jerome J. Finnigan on 12/12/1966 in Olmsted county, and then married Floyd Wilburn on 4/1/1994 in MN. The rest of those I will take note of and maybe they will pan out to be something in the future. Who knows, maybe she was married 5+ times. ;)
The Jerome death you found could be him, right age and middle initial, but do we have any info suggesting they ever lived in WI or MI? I'm only seeing MN over and over again for her.