Ken,
The Man you saw in the book Land between the rivers holding the Jack Hinson rifle is my father Carmon Greenup. He helped Dr.Henry on the Civil War section of the book . In 1968 he was able to locate the Jack Hinson rifle at the home of Benita McFarlin of Murfreesboro , TN. The rifle had 36 notches or round marks on the barrel . The book is Land between the Rivers By J Milton Henry Hope this can help Larry Greenup