In 1924, Aves became a school care organiser for London County Council, starting as an assistant care organiser. Care organisers were usually expected to hold a diploma in a social science, but Theodora Morton accepted her economics degree as a substitute. She was promoted to Principal Assistant Organiser in 1930. In 1938, she was involved in planning the evacuation of children, a role she held until 1941. She became permanent Chief Welfare Officer in the Ministry of Health in 1946, a role she had held on secondment during the Second World War, from 1941. In this role, which she held until the 1963, she supported post-war reforms of welfare and the establishment of a modern social service system. She worked on secondment for brief periods at both the United Nations Relief and Rehabilitation Administration, as chief child care consultant in Europe, and the Home Office at the start of this role. Aves held various short-term positions in family and child welfare for the United Nations alongside her role in the Ministry for Health throughout her tenure there. She was a governor of the National Institute for Social Work from 1961–1971, and served as chair of the National Corporation for the Care of Old People from 1965–1972. She chaired the Commission on the Role of the Voluntary Worker in the Social Services from its establishment by the National Council of Social Services in 1966. Her 1969 report on the role of volunteers in social service, The Voluntary Worker in the Social Services, led to the establishment of the Volunteer Centre. It encouraged an increase in the number of volunteers involved in health and social services, a proposal which was opposed by trade unions.
The Volunteer Centre
The Volunteer Centre was established in January 1973, with future Labour MP Mike Thomas as director and Aves a founder member of its board of governors. She became vice-president in 1974. The centre "took on the role of collecting and distributing information on volunteer recruitment and training". Her work, which had been recognised in part due to the advocacy of economist Brian Abel-Smith, with the Volunteer Centre led to her becoming a Dame in 1977. In 1975, Aves chaired an independent commission for the National Association of Voluntary Help Organisers.
Personal life
Aves lived in Highgate for most of her life. She was a member of the Highgate Literary and Scientific Institution, and enjoyed birdwatching. She was baptised at the age of thirty-four, and went on to serve on the Diocese of London's Board for Social Responsibility from 1977. She died on 23 June 1986, with a memorial service held for her on 15 October, officiated by the Bishop of Stepney.
