Adele Simmons (Vice Admiral)
From Memory Alpha, the free Star Trek reference
Adele Simmons, MD, DGA was a high-ranking medical doctor serving in Starfleet in the 24th century.
In 2328, Simmons boarded a starship at Starbase Allen, bound for Lauritson's Planet. This information was part of a commercial passenger manifest database recorded in Federation records reviewed by Data in 2370. (TNG: "Inheritance")
As a vice admiral, she was listed as Starfleet Tactical personnel on the dedication plaque of the starship USS Brattain in 2345. (TNG: "Night Terrors")
In 2353, Simmons was listed on a directory placard as having an office in room 35951 on Starbase 32. (TNG: "Violations")
On stardate 40250.5, with the title of captain, Simmons was listed as representing Starfleet Academy on the dedication plaque of the starship Phoenix. (TNG: "The Wounded")
By 2365, Dr. Simmons served in the medical section at Starbase 515. Her office there was located in suite 03-1523. (TNG: "Samaritan Snare")
On stardate 44820.5, Captain Simmons was listed as Academy personnel on the dedication plaque of the starship Sutherland. (TNG: "Redemption II")
She was listed as a Starfleet Tactical official on the dedication plaque of the USS Pasteur. (TNG: "All Good Things...")
She was also listed as a Fleet Ops officer on the dedication plaque of the USS Voyager (NCC-74656) (2371) and the USS Prometheus (NX-59650) (2373)
She was also listed on a USS Voyager crew manifest as an ensign, displayed on a computer screen in 2374. (VOY: "The Killing Game" set artwork)
[edit] Background
It isn't clear why she was listed as a vice admiral in 2345, as a captain and a doctor in the 2360s, and then as an ensign in the 2370s.
It is possible for an admiral in command of a ship to use the title of captain. Its also possible that she could have stepped down to a lower rank. Precedents for this have been established in that Beverly Crusher is a medical officer who will possibly spend time as a starship commanding officer, and Julian Bashir is a doctor who also has tactical experience sought after by Section 31, so her career changes, while unlikely, are possible.
It isn't clear if Simmons could have been part of the Voyager crew when it was trapped in the Delta Quadrant, and worked on the Prometheus, which was built after Voyager was stranded. However, it is possible she made contributions to the Prometheus design or construction before he was lost, and was still listed on the plaque in absentia. She could also have been assigned to the ship before it was stranded in the Delta Quadrant : during construction or test phase... Another explanation could be that the crew manifest was deliberately falsified in order to disturb aliens who tries to scan the database or board the ship, which could explain the use of the people on the dedication plaque with ranks that obviously are doubtful.
It is possible that there are different characters.
Simmons was named for production staff associate Adele Simmons, a second assistant director. The "real" reason for these numerous references is that Simmons's career was traced solely using directory signs, dedication plaques, and other okudagrams.
