Mary Stewart, Baroness Stewart of Alvechurch

Mary Elizabeth Henderson Stewart, Baroness Stewart of Alvechurch, née Birkinshaw, JP (8 May 1903 – 28 December 1984) was a British politician and educator. She was a Baroness in her own right and the wife of Labour Foreign Secretary, Michael Stewart.

The daughter of commercial traveller Herbert Birkinshaw and Isabella née Garbutt, Mary was born in Bradford. The family moved when she was four and she was educated at King Edward VI High School for Girls (KEHS) Birmingham, and Bedford College, University of London, graduating with a BA in philosophy in 1928. She taught psychology and sociology to Workers' Educational Association students. She married an advertising clerk named Robert Godfrey Goodyear in 1931, but they were divorced in 1941; she then married Stewart two months later on 26 July 1941.

During World War II, Stewart served with the Women's Auxiliary Air Force (WAAF) at locations around the country. After the war she took an interest in education and psychology and Barbara Wooton encouraged her to become a magistrate in the juvenile courts. She worked for the Workers' Educational Association, as a tutor until 1964. She became a member of the Fabian Society Executive, serving as Chairman in 1963-64. She wrote papers o the Fabian's behalf arguing that juveniles should be dealt with more leniently. In 1964 she published a short paper titled "Unpaid Public Service" which looked at the role of volunteers on committees. She argued that expenses should be paid and that these committees should meet in the evenings.

She was also involved in local hospitals, schools and she became the chair the East London Juvenile Court magistrates.

Stewart was created a life peer as Baroness Stewart of Alvechurch, of Fulham in Greater London on 15 January 1975.

She was married to Michael Stewart, Baron Stewart of Fulham, they were one of the few couples who both held titles in their own right. Stewart died on the 28 December 1984.