Caroline Slocock
Caroline Slocock is a British former civil servant and author, who served as the first female private secretary in 10 Downing Street between 1989 and 1991. She joined the Downing Street staff during the premiership of Margaret Thatcher and was the only other woman to be present in the room when Thatcher resigned in November 1990. Slocock continued to work as at Downing Street until 1991, working for Thatcher's successor, John Major.