She was born in 1915, had a PhD in psychology, worked for the Pentagon, and first published science fiction in 1968. The pseudonym led to a comment by (if I remember correctly) Damon Knight sometime in the early 1970s that all the good new science fiction writers were women except for James Tiptree, Jr. It wasn't until 1977 that her true identity was revealed. (It seems odd, though, that it took this long, since much of her work was intensely feminist, and my dad recalls reading the Nebula-award winning "Houston, Houston, Do You Read?" and thinking it was an odd thing to have been written by a man.)

She committed suicide in 1987 after shooting her Alzheimer's disease-afflicted husband.