A secretary was an individual that assisted another in organising and managing an office.
History
Early history
Fothergill was Thomas Cromwell's secretary until he was killed by Solvers in 1538. (AUDIO: The Eighth Piece, The Doomsday Chronometer)
Roger Colbert was the Abbot of Amboise's temporary secretary during the Abbot's stay in Paris in August 1572. (TV: The Massacre)
20th century
Adelaide Lessage was Lord Henry Palmerdale's secretary. (TV: Horror of Fang Rock)
Nancy was Reginald Rigsby's secretary in the 1950s. (AUDIO: Parasite)
According to one account, Dodo Chaplet went on to have a mundane career as a secretary after leaving the First Doctor. (PROSE: Ships)
Polly Wright was Professor Brett's secretary before becoming a companion of the First Doctor. (TV: The War Machines)
Jean Rock was the Commandant of Gatwick Airport's secretary in 1966. (TV: The Faceless Ones)
Sylvia was Rex Farrel's secretary at Farrel Plastics. (TV: Terror of the Autons)
Third Officer Jane Blythe was a Royal Navy officer who served as Captain John Hart's secretary at HMS Seaspite. (TV: The Sea Devils)
Stella was Jocelyn Stevens' secretary at Global Chemicals. (TV: The Green Death)
Molly Wright was secretary to the dean of the school of history at the University of Frodsham in 1983. (AUDIO:The Lady Of Mercia)
21st century
Matthew was Yvonne Hartman's secretary at Torchwood One in 2005. Tommy Pierce was suspicious of him, believing that no man would want to be a secretary. (AUDIO: Blind Summit)
Idris Hopper was Margaret Blaine's secretary. He failed to stop the Ninth Doctor entering her office as she fled out a window. (TV: Boom Town)
Whilst disguised as a human named "Victor Kennedy", the Abzorbaloff had a secretary whom he eventually absorbed in his office, killing her. (WC: Tardisode 10, TV: Love & Monsters)
Donna Noble was a temporary secretary at H.C. Clements when she first met the Tenth Doctor. (TV: The Runaway Bride)
Most schools had a secretary, including Coal Hill School. (TV: Into the Dalek, Kill the Moon)
Later history
Dora, the President of Earth in 2540, had a secretary. (TV: Frontier in Space)
Vorlin was a Time Lord secretary. (AUDIO: The Satanic Mill)