[iowamark]

There is a good defense of Lincoln against these racist slanders by a Christian Hillsdale College history professor, Thomas Krannawitter:
Vindicating Lincoln: Defending the Politics of Our Greatest President

CSPAN's BookTV and Lincoln 200 websites have much information and video on Lincoln.

An excellent recent BookTV program:
In Depth: Abraham Lincoln with authors: Edna Greene Medford and Frank Williams

[Non-Sequitur]

a Christian Hillsdale College history professor, Thomas Krannawitter

Reading it now. Very good book.