A short biography of William Mack Lee is here:
The electronic edition of his autobiography is here:
Since my father was ten years old in 1920 and the Civil War ended in 1865, that means that the Civil War had been over for about 55 years. What I find fascinating about that is that World War II, which was one of the defining events of my father's generation, has been over for longer than that (almost 70 years).
For those who are interested in such things, Mack Lee, who has the same last name as R.E. Lee was a slave originally for the Lee family, and stayed with Lee when he was freed in the course of the war. What I find amusing is the southern tradition of keeping the same last name, e.g. if you were a slave for the Lee family, you were also a Lee. I have many friends who are part of the Carter family (e.g. Carter Burwell, Carter Emmart, Jimmy Carter, etc) and they report that there are a lot of African American Carters around. Well, maybe I should say this is interesting, not amusing, given what we are talking about here.