Yehuda Nir, Polish-American psychiatrist (died 2014)

Yehuda Nir was a Polish-born American Holocaust survivor, psychiatrist and author of The Lost Childhood. Nir posed as a Roman Catholic and learned Latin to escape Nazi persecution in Poland during World War II. Nir's ordeal led him to a career as a psychiatrist, specializing in the treatment of post-traumatic stress disorder and severely ill children. He immigrated to the United States in 1959 to complete medical residencies in New York City and Philadelphia. He served as the chief of child psychiatry of Memorial Sloan Kettering Cancer Center from 1979 until 1986.