My grandfather is Edward Williamson, Cleveland, Ohio.
I know that his father is George Williamson, born in Ohio, married to Mary Elizabeth Ternansky (from Hungary).
His father is Robert Williamson, married to Elizabeth Coward.
His father is James Williamson who served in the civil war, he enlisted in Ohio.
This is about all the information I have. I'd be very interested in any information along this family line. Pleae email me if you have any information, I'd be happy to share mine as well. I have some pictures-including of James Williamson in his Civil War uniform.