Van Evrie's thought influenced the work of the writer Edward A. Pollard. After abolition Pollard had ceased to support slavery on grounds of tradition or paternalism, and turned instead to Van Evrie's theories of black biological inferiority, and endorsed Van Evrie's assertion that white democracy required total black subordination. He was also cited as an authority by Hinton Rowan Helper in his The Negroes in Negroland; the Negroes in America; and Negroes Generally. In 2010 the historian James Lander wrote that Van Evrie "may have achieved his stated desire to influence politicians rather than scientists." Van Evrie claimed that Stephen A. Douglas had distributed copies of Negroes and Negro "Slavery" among his constituents, and described Douglas as one politician who had "assented to the new doctrine in private, but declined the responsibility of standing by the truth in public". He also claimed to have converted Alexander H. Stephens to "the new doctrine" by presenting him with a copy of Negroes and Negro "Slavery".
