Alice Bradley Sheldon, better known as James Tiptree Jr., was an American science fiction and fantasy author. It was not publicly known until 1977 that James Tiptree Jr. was a pen name of a woman, which she used from 1967 until her death. From 1974 to 1985, she also occasionally used the pen name Raccoona Sheldon. Tiptree was inducted into the Science Fiction Hall of Fame in 2012.

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