Multiple realities(covers information from several alternate timelines)
Arlene Fukai was a Starfleet officer in the 24th century.
In 2353, she was listed as a Starfleet Operational Support Services officer on the directory placard at Starbase 32, Maxia sector. Her office was located in room #35951. (TNG: "Violations", directory)
In the 2370s, she was listed as a Fleet Ops officer on the dedication plaque of Federation starships. (VOY: "Caretaker", dedication plaque; VOY: "Message in a Bottle", dedication plaque)
In an unknown, alternate future timeframe, she was listed as a Tactical Systems officer on the dedication plaque of the USS Pasteur. (TNG: "All Good Things...", dedication plaque)
This character was only mentioned in writing.