Kathy Nightingale

Katherine "Kathy" Costello Wainright (née Nightingale) was the sister of Larry Nightingale and a friend of Sally Sparrow. She was born circa 1985.

Early life
Kathy Nightingale was born in Lancashire in the 1980s, (PROSE: The Time Travellers' Almanac), more specifically circa 1985. (PROSE: The Very Real Mystery of Wester Drumlins) Her birthday was 29 January. (GAME: )

Her brother, Larry, considered her to be "the smart one". Both of their parents passed away, after which Larry rarely contacted her, unless he needed a place to stay. He would later express regret that he hadn't spoken to her more. (GAME: )

Encounter with the Weeping Angels
In the 2000s, she visited Wester Drumlins with Sally to investigate the premises. There she was sent back in time to Hull on 5 December 1920 by a Weeping Angel after being distracted by a mysterious man trying to give Sally a letter. Stranded, she started a new life and married Ben Wainwright. (TV: Blink)

Life in the past
They had two sons, Matthew and Joseph, and a daughter which she named Sally - after her friend. (PROSE: The Time Travellers' Almanac)

Her husband died of influenza in 1962, and Kathy grew old among her children and grandchildren. (PROSE: The Time Travellers' Almanac)

In 1969, the Tenth Doctor, working from information given to him by Sally Sparrow, contacted Kathy and enlisted her aid in sending a message to Sally in the 2000s, although it was another eighteen years before she did so.

She died in 1987, shortly after writing a letter that her grandson, Malcolm Wainright, delivered to Sally Sparrow in the 2000s.

Legacy
Viewing Kathy's tombstone in the 2000s, Sally saw that the birthdate on it would have made Kathy eighteen in 1920. This led Sally to jokingly call her friend a "lying cow", indicating that Kathy lied about her age when she re-established her life in the 1920s.

The Weeping Angel consumed the potential energy from the time Kathy Nightingale would have spent in the present. (TV: Blink)

Despite his sister's disappearance, Larry Nightingale kept Kathy as a contact in his mobile phone. On her birthday in 2021 he texted her number in her memory, but Graham replied. By this time, Kathy's number had been sold by her provider. (GAME: )

Personality
A number of years after Kathy's disappearance, Larry stated to Sally that "Kathy would be livid if she knew you've spent all this time grovelling". This was part of the reason why he was able to move on. He told her that his sister "[could] get quite scary". (GAME: )

Quotes
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