SNIPPET: Author Jim HERLIHY is considered an expert on the military history of Ireland and has published several books to include: 1. "The Dublin Metropolitan Police" A Complete List of Officers and Men, 1836-1925." 2. The Dublin Metropolitan Police: A Short History and Genealogical Guide." 3. The Royal Irish Constabulary: A Complete Alphabetical List of Officers and Men, 1816-1922." 4. Royal Irish Constabulary Officers, A Biographical and Genealogical Guide, 1816-1922."