Do you know of any siblings that your grandfather Andrew had? In the 1910 census it says that John and Mary Jurison had 11 kids, but only 5 living at the time of that census. They had three kids registered in their house (Annie [20 years old], Andrew (your grandfather), and William ). I have no clue who the other two were (they were probably older) or who any of the other 11 kids were (chances are most of them died in childbirth, or in infancy). Do you have any idea?