Amazing Grace: The Inspirational Stories of William Wilberforce, John Newton, and Olaudah Equiano - CD story by Focus on the Family - $49.95 

This quality audio production offers listeners an in-depth story of each of the three men instrumental in overthrowing the slave trade--William Wilberforce (an evangelical Christian politician), John Newton (author of "Amazing Grace"), and Olaudah Equiano (slave turned Quaker merchant). 6 CDs.  Ages 13 - adult.  Note: The Equiano and Newton stories have some disturbing parts. A truly inspirational series.