My great grandmother's maiden name was Ivey. She was born and lived her entire life in southwest Wisconsin. She had a brother named James A. Ivey, who died in Long Beach, California in 1921. His son was James Eugene Ivey, who also lived in Los Angeles, California. James Eugene was born in Wisconsin in 1873 and died in 1952 in California.

James A. Ivey also had a sister named Rosena. So similar to your granmother's name that I thought there might be a connection, not that Rosena would have been your grandmother. My Rosena died in 1914 in Wisconsin. But maybe your grandmother was named after my Rosena.

I hope you're still reading this and hope it helps in your family search. I have quite a bit of additional information, if you're interested.