Joseph LaFollette was the son of Jean Du Follet, who came to America in the 1700's from France. Joseph was born around 1743 in New Jersey. His brother, George, was born in 1745-1750, also in NJ. George had 4 children, including Isaac (1770-1859) and Jeremiah (1772-1849). They were apparently born in Virginia.
Jeremiah had 8(!) children, including an Isaac (born 1817 in Greene County, TN). During the Civil War, Isaac enlisted in the Union Army Sept 25, 1863. Soon thereafter, his wife became ill and died. Isaac was very sick himself when discharged at Mooresville, AL. Undoubtedly, he died en route home to Maryville, TN.
Isaac had a son named Jeremiah (confusing, isn't it?) who lived 1849-1925. He was called "Jerry". He lived most of his life in Etowah County, AL, near Gadsden, where he is buried.
Jerry's first wife died in 1885, after bearing him 6 children. He remarried in the same month (!), and had 7 children with the second wife. One of these children was Luther Lafayette LaFollette, whose son was William Guy LaFollette, whose son was Lee Alan LaFollette, who, on July 29, 1961, welcomed me into this world as the first of his three sons.