I agree. It is hard to find anything balanced on Lincoln. I also agree that DiLorenzo only discusses the negative - perhaps as effort at shocking people into realizing that the Sandburg Lincoln is a gross distortion. If the Yale history that you refer to is a mulitvolume history produced by Yale, I think I have it. I just haven’t read all of it because it runs for 10 or 20 volumes.
Well duh. Any serious student of Lincoln or the rebellion knows that Sandburg's work is worthless as serious biography. Almost as worthless as DiLorenzo's books are.