At least these 3 Twitter accounts from devs are pretty clear:
https://twitter.com/puellavulnerata
https://twitter.com/postessive
https://twitter.com/isislovecruft
As well as https://twitter.com/maradydd (not a dev afaik but associated with Tor?)
This is also pretty clear: https://www.reddit.com/r/TOR/comments/4mkh8j/confirmed_jacob...