In her final year, she was commissioned by the magazine The Sketch to make fortnightly drawings of various towns and social events in the UK.

On returning to England in 1954, she gave up painting and concentrated on illustration and drawing, working initially for The Sunday Times, The Observer, Shell Oil and various magazines.

[6] In the 1970s, she collaborated with Caroline Conran, food and cookery editor of The Times[7] on Poor Cook,[8] which was designed by Peter Kindersley.

She continued to write and illustrate books and articles on food until 1981, when her interest was diverted to the history of walled kitchen gardens.

This change of tack was inspired by a visit, some twenty years earlier, to Thomas Pakenham at Tullynally Castle where the vast walled kitchen garden was intact and still in production.

The two events highlighted the huge loss of walled kitchen gardens, ignited public interest and spurred Campbell on to research them further.

However, interest in the subject matter was so great that it was eventually felt there was no need for anonymity and the book was subsequently re-issued in 2005 by Frances Lincoln publishers with the more descriptive title A History of Kitchen Gardening.