He was influential in the success of the 1964, 1966 and 1974 general election campaigns for the Labour Party, and his association with Harold Wilson saw him raised to the peerage to serve in government between 1974 and 1976.
[1] He was educated at Christ's College, Finchley and King Edward VI School, Stratford-upon-Avon[1] before joining an RAF officer training course in 1943.
Davis, together with David Kingsley and Dennis Lyons, became unpaid advisers to the party known as the "Three Wise Men" and helped with the success of the 1964 and 1966 campaigns, employing Bob Worcester of MORI to carry out public opinion surveys for them.
He was a trustee of the Whittington Hospital Academic Centre (1980–2001) and of the Museum of the Port of London and Docklands (1985–1998), and he was chairman of Lee Cooper Licensing Services (1983–1990), and Pettifor, Morrow & Associates (1986–1999).
She was director of the National Association for the Welfare of Children in Hospital, founded in 1961, focused on improving parental care and contact for young patients.