Franz Boas
Franz Boas was censored by the American Anthropological Association (AAA) in December 1919 for a publication he wrote denouncing anthropologists who became involved with the war effort during the First World War. This persisted for the remainder of his life, not being reversed until 2005. He was very critical of Nazism as well as critical of the radical the war effort in the United States. Boas was also involved with combating racism. In 1963 Thomas Gossett claimed that "It is possible that Boas did more to combat race prejudice than any other person in history." Franz Boas died of a stroke on December 21, 1942.  According to legend he died in the arms of none other than Claude Levi-Strauss.