Shaw was born in
Uddingston, Scotland, on 28 May 1904 to
Helen Brown Shaw, a politician who became MP for Bothwell in 1931, and David Perston Shaw. She studied at the
University of Edinburgh before taking her postgraduate certificate at
Bryn Mawr College in
Bryn Mawr, Pennsylvania. Shaw met Dr
Lillian Gilbreth at Bryn Mawr College and became Gilbreth's research assistant in the field of
Motion Study. Shaw then began working at
Gilbreth, Inc. until 1930 when she returned to the UK. She was a personnel officer at
Metropolitan-Vickers before becoming chief supervisor of women workers in 1933, and was the company's chief motion-study investigator between 1930 and 1945. She was also a consultant to the
Associated Electrical Industries group of which Metropolitan-Vickers was a part. Shaw joined the
Women's Engineering Society in 1935. In late 1936, Shaw helped produce a film for the
Electrical Association for Women which demonstrated the application of motion study concerning food preparation in the home. On 26 November 1937, at the Metropolitan-Vickers Debating Society, Shaw served as an opponent of a motion "That the Introduction of Female Apprentices to these works is to be deplored". As a result of her opposing voice, alongside those of
Gertrude Entwisle,
Dorothy Smith, and the speech of Dorothy Garfitt, a recently accepted apprentice, the motion lost by a margin of 17 votes. Shaw married John H. Pirie in 1937 and they had three children. To continue working at Metropolitan-Vickers as a married woman, and to ensure the continued employment of her colleague Margery Havelock after her wedding in 1937, Shaw persuaded the Company Board in 1938 to remove its marriage bar. Shaw was recruited by the Minister of Aircraft Production,
Stafford Cripps, in 1942 and during
World War II, she worked on the Production Efficiency Board as an adviser to the aircraft industry. ==Death and legacy==