Barbara, When looking for matches of persons in Ireland before registration the only way that I know, which is indicative at the best, is to firstly find the county where both of the names exist, secondly the parish and thirdly the townland. I therefore looked for any commonality between the names of Smith and Cuddehy and found the following.... County Meath, Parish of Clonard, Townland of Longwood. Edward Cuddehy, Longwood Village, Fair Green. James Cuddehy, Longwood. Joseph Smith, Longwood. Patrick Smith, Longwood Village, Longwood Street. Rep. William, Longwood. County Tipperary, Parish Nenagh. William Cuddehy, Town of Nenagh, Church Street. Aquila Smith MD, Nenagh North. Aquilqa Smith MD, Shesheraghkeale . Charles Smith, Nenagh, Graces Street. James Smith, Nenagh, Pound Road. Robert Smith, Graces Street. I could not find any commonality with the names in any other county. Have you looked at the childrens names to see if there is a naming pattern? Hope this helps. John...Sydney