This whole article is very brief and worth a read, but a few (what the fuck among all of the what the actual fuck) mentions:

Paul Weyrich: Co-founder and first Heritage president, Weyrich was a long-time associate of the John Birch Society. Weyrich left Heritage in 1974 to found the Free Congress Foundation, an activist group that still works closely with Heritage. Convicted Nazi war criminal Lazlo Pasztor works out of FCF’s Washington office, maintaining links to Eastern European organizations with roots in wartime pro-Nazi organizations (Russ Bellant, The Coors Connection). In 1993, Weyrich launched the right-wing cable TV channel National Empowerment Television.

According to formerly conservative journalist Michael Lind (Dissent, Winter/95), Weyrich recently circulated a proposal to fellow right-wingers “that the federal government secretly lace illegal drugs with substances like rat poison and release them into the black market.”

Ernest Lefever: At the time a Heritage boardmember, Lefever’s 1981 nomination for assistant secretary of State for human rights was withdrawn after an article by Lefever in Policy Review showed he was opposed to the idea of diplomatic human rights efforts. During his unsuccessful confirmation hearings, Lefever’s own brother called him a racist. While Lefever considers himself an ethicist, his own organization, the Public Policy Center, took financial support from apartheid South Africa (Washington Post, 3/6/81) and supported the white minority government of Rhodesia (Wall Street Journal, 6/2/76).

Sam Francis: Heritage’s former expert on international terrorism saw his column terminated by the right-wing Washington Times in 1995, when it was revealed that he had called for whites to “reassert our identity and our solidarity, and we must do it in explicitly racial terms through the articulation of a racial consciousness as whites” (Washington Post, 9/24/95, 10/19/95).

Dinesh D’Souza: Editor of Heritage’s Policy Review from 1985 to 1987, D’Souza is still a contributing editor at the magazine. D’Souza first gained notoriety as editor of the collegiate Dartmouth Review, which published under his leadership “Dis She Ain’t No Jive,” a racist parody of black students, and a puff interview of white supremacist David Duke, accompanied by a depiction of a hanging black man (John K. Wilson, The Myth of Political Correctness).