oliver is my husband tom cebrowski's grandfather on his mother vivians side, i beleive your mom, nona is vivians sister. The story that I got from your mom's mother, magdalene Flynn was that leroy gurin, father to oliver, had a father who was raised by the gurins and took their name. He was supose to have come from South Dakota and had been from a family with the name of STONE. I have tryed for years to find info. on this to no avail.