Lawson, Elizabeth. "Thaddeus Stevens: militant democrat and fighter for Negro rights." International Publishers, New York., 1942

This series contains two works by noted scholar Herbert Aptheker on American slavery, a subject of study for which he was renowned. One looks at the labor movement in the South, and how slavery fit into the overall picture, while the other is a critique of a then-popular book Aptheker thought was utterly incorrect in its analysis of slavery condition. The last item is an appreciation of American abolitionist Thaddeus Stevens.