African Americans: Voices of Triumph is a short series published in 1993-1994. It is a somewhat rare publication in that it is targeted for one specific group; most Time-Life publications are more general in scope. I haven't seen any of these yet and I have yet to talk to someone who has read them. If you've read them, let me know how they are!
I have also seen an educational kit that goes along with this item (it's called Voices of Triumph: People with a Dream) and has overhead slides, handouts, etc. designed to be used with the books in a classroom environment.