looking for my father or relatives

My Father's Name is James Edward Tierney he is originally from some part of New York. My name is Michael James Tierney. I was born 08/04/1970 in Atlanta,Ga. where my father was living at the time I have never met my father and there are alot of unanswered questions that I would like to have answered.At the time of my birth my father was roughly 27 years old.