In 2353, he was listed as a Starfleet Operational Support Services officer on a directory placard in Starbase 32, Maxia sector. His office was located in room #83412. (TNG: "Violations" , directory) In the 2370s, he was listed as a Yard Engineer on the dedication plaque of Federation starships. (DS9: "The Search, Part I", dedication plaque; VOY: "Caretaker", dedication plaque; DS9: "Valiant", dedication plaque; VOY: "Message in a Bottle", dedication plaque; DS9: "The Dogs of War", dedication plaque) This character was only mentioned in writing. He was named after costume designer Bob Blackman.