|Born:||9 September 2341|
|Stationed:||USS Hibernia (NCC-83917)|
|Relatives:|| Laura (sister),|
Mark John Thomas Montgomery was born in Belfast, Ireland in the year 2341. His parents, Dominic Montgomery and Carol Montgomery were members of the Federation Diplomatic Corps. He had an elder sister, Laura, and a younger brother, Timothy.
Mark entered Starfleet Academy in 2358, and was assigned to Nebula Squadron. He became close friends with his squadmates, Timothy Sinclair and Joshua Hofmann, and his field instructor, Lieutenant Commander Steve Tecklenberg. (PDN: "Children of the Burning Heart")
He graduated with honors in 2362.
In 2364, he was assigned to the USS Scandalon at the request of Commander Tecklenberg. He was later assigned to the USS Melbourne as an operations officer, where he served with Twining and Hofmann until the ship was lost at the Battle of Wolf 359.
As the Avalon's XO, Commander Montgomery participated in eight first contacts during the vessel's deep-range exploration mission.
In 2383, the Avalon and Pendragon engaged a fleet of Romulan warbirds in the Triangle. Mark was seriously wounded in the battle and was put on medical leave. He returned to Aldebaran to recuperate, and was replaced aboard the Avalon by Jesse Erixon.
- "If morons traveled at warp, this would be a bloody spacedock."
- — Mark Montgomery in "Crosses & Crowns" (Star Trek: Pendragon)