The first two doctorates in computer science in the United States were awarded on June 7, 1965.
One of them was awarded to Irving C. Tang. I can’t find a lot of information online about him, though I think this might be his obituary.
The other one was awarded to Sister Mary Kenneth Keller, of the Sisters of Charity of the Blessed Virgin Mary.
Yes, that’s right: one of the first computer science PhDs in the United States wasn’t just a woman, but a nun. And a good Cleveland girl.
This is a recent biographical paper about Sister Keller, who passed away in 1985. She sounds like a very interesting person: she had a long career teaching (at one point, she sat down with Buckminster Fuller to discuss “how computers could augment his work”) and as an administrator who pioneered the use of computers in administration. She was also an early advocate for microcoputers in education.