Alice Bradley Sheldon (born Alice Hastings Bradley; August 24, 1915 – May 19, 1987) was an American science fiction and fantasy author better known as James Tiptree Jr., a pen name she used from 1967 to her death. It was not publicly known until 1977 that James Tiptree Jr. was a woman. From 1974 to 1985 she also used the pen name Raccoona Sheldon. Tiptree was inducted into the Science Fiction Hall of Fame in 2012.