Note how there's no dissertation or thesis advisor listed, unlike the other alumni. Here's an article saying he didn't graduate more explicitly: https://www.nytimes.com/2017/08/08/technology/google-enginee...

> Harvard University tells me James Damore did not complete his Phd. He completed a masters degree in systems biology in 2013 [1]

You can "be on a PhD program" without having completed it.

[1] https://twitter.com/nitashatiku/status/894939560391565317