I know this is a real long shot but it's the only thing I can think of. I was adopted in 1969 . I found and met my birth mother, now deceased and am still in contact with that side of my family. However I know I have at least 4 older half sisters on my birth father's side. Unfortunately all I know about him is rough location, rough age, occupation and possibly his name (if birth mother was honest about it). Would a dna test be of any help at all or can anyone suggest anything else. I'm aware that it could open a big can of worms which has always made me hesitate about doing anything but I'm 53 now and it's eating away at me not knowing.