William Walsh in Galway

William Walsh born 14 Jun 1827 Co.Galway, Arrived in America in 1849. Married Ellen Reed 8 Oct 1855 in Illinois, USA.  Children; Mary Ellen, Margaret, Richard, Anna Bridget, Julia, Winnifred, Rose, and Katherine. Died, 18 Jan 1911, McGregor,Iowa, USA. Any information on this family or individuals, like parish name would be appreciated.