Margaret McDonagh, Baroness McDonagh

Margaret Josephine McDonagh was born on 26 June 1961 in Mitcham, Surrey, to an Irish family.[5] She was the younger of two daughters of Cumin McDonagh, a construction labourer, and Breda McDonagh (née Doogue), a psychiatric nurse. Her elder sister was Siobhain McDonagh, who was elected the Labour member of Parliament for Mitcham and Morden in 1997.[5] Margaret was educated at Holy Cross School in New Malden and gained a Bachelor of Science degree in government at Brunel University London and a Master of Arts in advanced marketing at Kingston Business School,[5] and later completed an Advanced Management Program at Harvard Business School.[3]

McDonagh was part of the New Labour leadership inner circle for the 1997 general election campaign and was one of the inner-core deciding the official party position on specific issues.[2][6]

In 1998, McDonagh became Labour's first female general secretary, after having served as deputy general secretary the previous year. She was not always popular with the grassroots and parts of the Parliamentary Party due to her perceived "control-freakery".[2][7] She was considered to have badly mishandled the party's London mayoral candidate selection process, which resulted in Ken Livingstone winning 2000 mayoral election as an independent candidate, leaving the official Labour candidate, Frank Dobson, in third place, with subsequent disapproval amongst the party members.[8][2][9] McDonagh later apologised for the mayoral electoral loss.[6] Her organisational skills came to the fore however in the delivery of a second landslide victory at the 2001 general election.[2] She was also criticised for accepting, without consultation, a £100,000 donation from Daily Express and adult magazine publisher Richard Desmond, and for still counting as party members those in arrears of up to 15 months to delay news of declining membership emerging.[10]

After stepping down from the position of General Secretary following the 2001 general election,[11] McDonagh took a short Harvard University business course and became general manager of Express Newspapers.[6][12] She was a non-executive director of Standard Life, TBI plc, and CareCapital Group plc. She was chair of the Standard Life Charitable Trust.[3]

McDonagh became a life peer on 24 June 2004, and was created Baroness McDonagh, of Mitcham and of Morden in the London Borough of Merton.[13]

In 2013, McDonagh was appointed chair of the Smart Meter Central Delivery Body, which then became Smart Energy GB, an independent organisation that aims to inform consumers about smart meters and their national rollout across Great Britain.[14]

McDonagh lived with her sister in Colliers Wood, London, throughout their adult lives.[5] She was diagnosed with glioblastoma in 2021 and died at home on 24 June 2023, two days before her 62nd birthday and 19 years to the day after she was first appointed to the Lords.[5][15][16] She was described as the "linchpin" of New Labour.[17] Pat McFadden wrote that she was a "true working-class hero".[18]