Father Elijah

 was an elder and leader of part of the west-coast Brotherhood of Steel. He went missing during the NCR takeover of the HELIOS One powerplant and was never found. According to Head Paladin Hardin, his becoming an elder was questionable due to his status as a scribe; normally, the ability to become an elder is reserved for Paladins, though in Elijah's case an exception was made due to his high intelligence.

Appearances
is only mentioned in Fallout: New Vegas.