D. Gluck

From Memory Alpha, the free Star Trek reference

Vice Admiral D. Gluck was a 23rd century Starfleet flag officer attached to the Starfleet Academy's Starfleet Training Command, where he was responsible for receiving ship in 2285.

Gluck was listed on a directory placard found on the 2nd level of Starfleet Training Command. (Star Trek II: The Wrath of Khan)