John Flynn

My Gr Gr Grandfather John Flynn came to America in the late 1840s.HIs death certificate states he was born in Dublin, Dublin, Ireland. It lists has dad as Will Flynn born in Dublin, Dublin, Ireland. Mother is listed as unknown. I ahve no info on any brothers or sisters. His Obituary states that he came from Ireland in his young manhood. He was born approx. 1831 to 1827. I think ha may have come over alone, which means his dad Will would ahve stayed in Dublin. He lived in and died in Winnebago county, laona, Illinois. If anone has any info or suggestions to get further info I'd appreciate it....Judy