Pigott was born in Ottawa on May 20, 1924, the eldest of three children born to Cecil Morrison and Margaret Cotter.[1] The daughter of Ottawa businessman George Morrison, Pigott's family has lived in the Ottawa Valley for four generations.[2] She attended Ottawa Ladies' College and studied at Belleville's Albert College for a year,[1][3] before joining the office staff at her family's business, Morrison Lamothe Bakery.[2] In 1948, she hired Arthur Pigott, an accountant, to serve as her assistant manager.[1] The two married in 1955 and Pigott left her job at the bakery.[3] They had three children between 1957 and 1963.[2]
By the 1960s, Morrison Lamothe had expanded into 30 shops and restaurants and a 1,000-employee workforce, but it was struggling financially due to a bread price war and the opening of a new, $5 million plant in Ottawa's east end. In 1966, Pigott rejoined the company and became its president and CEO. She closed the new factory, returning operations to their abandoned factory which was scheduled to be demolished, laid off 600 staff, sold off several subsidiaries, and persuaded creditors to freeze the company's overdue accounts. Within a year, the company turned its first profit in five years and expanded into frozen foods.[1][2][4]
In 1972, Pigott became the first woman to sit on the board of directors of Ontario Hydro.[3] In 1973, she joined Ontario Premier Bill Davis as part of a trade delegation to the United Kingdom.[2]
After her defeat, Pigott set up a communications consulting firm and returned to Morrison Lamothe as chairman of the board.[2]
Following the Progressive Conservative Party's return to power under Brian Mulroney in the 1984 federal election, Pigott was appointed by Mulroney as chair of the National Capital Commission (NCC).[6] She served the role from 1985 to 1992.[7] Her tenure saw the introduction of user fees on parking at Gatineau Park and cross-country ski trails to offset budget cuts to the NCC.[8]
In 1979, Pigott became the first female member of the Rideau Club in its 114-year history.[2]
In 1995, Pigott was made an Officer of the Order of Canada for having "shown leadership and determination in ensuring the use of resources for positive growth and change at all levels of government".[10]
In 2004, Pigott was awarded the Key to the City by the City of Ottawa.[8] Jean Pigott Hall at Ottawa City Hall is named for her.[11]