This is my first attempt at researching my family tree. I don't really know where to start. My father was Ollie Duggan (B1922 - D1976), his father was Noley Alfred Duggan (B1890 - D1969), his father was John Benjamin Duggan (B1866 - D?)and his father was Sammie Duggan (B1826 - D1899). I know my ancestry goes back to Ireland (on my father's side), but that's all I know. Any info or guidance you can give will be much appreciated.