I'm looking for Carroll ancestors from Cork. I understand most Carrolls are not from Cork, so I'm hoping someone can help.

The farthest I can go back is to my gr-gr-grandfather John Carroll, born 1837 in Cork. He married Ellen Hennessey, born 1839 in Cork, and they immigrated to Wisconsin. They had 7 children. Both died in 1909 and are buried in Lancaster, Wisconsin.

Any info to share?