William W. Irwin, spouse Arabella ?, were in Beaver Co., on the 1865 Income Tax list. There were also a Nelson Irwin, Jonathan Irwin and Joseph Irwin in Beaver Co., during the same time period. Does anyone have any information on these Irwins? William W. and Arabella went to Marion Co., TN. by 1880. Their 7 children were all born in PA. Children were: Joseph, William, Rebecca Jane, Annie, Nora E., Mary and Charlie, who was a female.Mary married a William C. HAWKS.