A Krio, she was born into the influential Horton family, black migrants to West Africa from the Americas in the 18th century who by the 20th century had become intellectuals, business people, and members of the professions. Her father, John Warner M. Horton, was city treasurer of Freetown, while her mother was a concert pianist.
Cornell University.
Constance herself went to London in 1935 to train as a schoolteacher. While there she joined the West African Students" Union and the League of Coloured Peoples. Having gained her teaching certificate, she took up further studies in the United States at Cornell University.
During the Second World War she established a mining company, which later became an important source of funds for her educational projects.
While living in the United States, she worked in hospitals and served on the executives of the American Council for African Education and the Council on African Affairs, the second of which was chaired by Paul Robeson. On her return to Freetown in 1951 she joined the Sierra Leone People"s Party and founded a new school for girls, the Roosevelt School, which by 1953 had more than 600 students.
During these years Cummings-John gained a licenciate from the London College of Preceptors, and in 1952 the Governor of Sierra Leone, Sir George Beresford-Stooke, appointed her to the Freetown Council. At the general election of 1957 she was one of two women elected to the new House of Representatives, even though women did not yet have the franchise.
The Krio-led opposition then successfully demanded the resignation of both women, but the next year Cummings-John was elected to the Freetown Municipal Council.
In 1961, with the independence of Sierra Leone, Cummings-John"s husband became the new country"s ambassador to Liberia. In 1966 Prime Minister Albert Margai appointed her as Mayor of Freetown, in succession to Siaka Stevens, but she held the position for only a few months. Cummings-John was herself accused of financial corruption while outside the country and was advised not to return.
Her actions also led to the formation of the Sierra Leone Market Women"s Union and a Washerwoman"s Union.
Despite unsuccessful attempts to return to Sierra Leone in 1974 and 1996, Cummings-John lived the rest of her life in London. In 1995 she published an autobiography.
She died in London on 21 February 2000 at the age of 82.
In 1937 she returned to Freetown as principal of the African Methodist Episcopal Girls" Industrial School, but her political activities caused her great problems with the British Colonial Office. Her party lost the general election of 1966, and there was then a successful military coup against the new government.
She settled again in London, where she became an active member of the Labour Party and the Campaign for Nuclear Disarmament and also a school governor. Cummings-John was a member of political organizations in the United Kingdom and the United States as well as in Sierra Leone, and she and I. T. A. Wallace-Johnson were the only Krio to fight for the participation of the indigenous "Protectorate peoples" in West African political processes.
