Here is the source for my claim that Newton continued to invest in the slave trade long after his retirmenent. It's the BBC. http://www.bbc.co.uk/dna/h2g2/A22084599

Ted, I think my only disagreement with you is that I think you're letting Newton off easy. But your points are well taken. Michael, yours also. Perhaps there are not many who think much about Newton when singing Amazing Grace.

Sad to say, there may be more of them after this long thread.