I am interested in that Cain book, too. I have a John Cain, b. 1819 in Virginia, his brother, George W. Cain, b. 1812, and Absalom b. 1813. Supposedly, they came from the "Shenandoah" area of VA. Their mother was Susan who died in Dubuque, Iowa, in 1866. This family came first to Highland County, OH, then on to Duguque by the 1850 census. Could they be in that book? Judith K. Arthur