In the Halo universe, it is well know that Miranda is the daughter of Captain Jacob Keyes. In the recent Halo: Glasslands it is made obvious that her mother is:
Dr Catherine Halsey
However, when was it mentioned before this, if at all?
Science Fiction & Fantasy Stack Exchange is a question and answer site for science fiction and fantasy enthusiasts. It only takes a minute to sign up.Sign up to join this community
The entries occur in her mother's journal, included with the Halo: Reach limited edition. Among other things, it documents her growing feelings for Jacob (Keyes), and the eventual birth and separation of Miranda and her mother.