I am searching for any information on my great great great grandparents John McKinley, who was born abt 1801 in Pennsylvania and Janetta Roland who was born abt 1790 in Pennsylvania. I have found that three sons were born to John and Janetta (Genet): John B. born abt 1822 in Pennsylvania; Stephen born Sept 19, 1824 in Ohio; and David born Oct 14, 1829 in Ohio. John B is my great great grandfather. I have found all five in the 1850 census in Washington, Holmes, Ohio. I believe about three years later they all moved to Iowa. Any help in finding the parents of John and Janetta or even further back would be very much appreciated. I have come to a brick wall. Of course any help on any members of this family is very much appreciated. Thank you.