Leishman worked as a
fundraiser for the
Church of Scotland, supporting efforts to build new churches, writing personally to every minister in the Church of Scotland. She subsequently worked as a project administrator for the
National Trust for Scotland, notably for the trust's
Georgian House,
Charlotte Square,
Edinburgh. As manager of the education department, she published booklets and educational material for the National Trust for Scotland and other organisations. From 1969 to 1975 Leishman served as one of the ruling council members of the influential Edinburgh conservationist group the
Cockburn Association. Among other publications, she wrote a revealing
biography of
Reith of the BBC: My Father, published in 2006. Speaking at the
Edinburgh Book Festival in 1970, she is quoted as saying, "My father was a mix between a thunder god and a spoiled child." == Family life ==