 At the 2019 annual Evening of Celebration for Walker and of the trust held at the Royal Society of Medicine in London, speaker Felicity Lawrence of "The Guardian," a friend and colleague of Walker, said “She was the lodestar for campaigning around food and social justice that has guided me, and influenced countless others, ever since… She had a unique combination of erudition and academic ability with human warmth, and a gift for popular communication.She was a great phrase-maker, and a witty story-teller… She could simplify to communicate because she had such deep understanding of the science behind her subject.That was rare.