Leslie Cross

Leslie J. Cross (1914-1979) was a British vegan activist, writer, and vice-president of the Vegan Society whose 1949-1951 campaign shifted veganism from a dietary regimen into an ethical doctrine. In 1951, as the Society’s vice-president, he secured the adoption of a formal object: “to end the exploitation of animals by man” — and defined veganism as “the doctrine that man should live without exploiting animals.”

The 1951 definition

Cross first proposed a principle in 1949, arguing that the young Vegan Society needed a clearly stated philosophical basis distinct from vegetarianism. His article Veganism Defined, published in The Vegan (Autumn 1951) and reprinted in the Vegetarian World Forum, set out the doctrine of non-exploitation as the movement’s foundation. The wording — refined over later decades but never overturned — remains the conceptual backbone of the Vegan Society’s present-day definition.

Plantmilk and Plamil

Convinced that veganism required practical infrastructure, Cross co-founded the Plantmilk Society in 1956 to develop a commercial plant milk. After nearly a decade of trials, the successor company Plamil Foods began producing soya milk in 1965, making it one of the earliest commercial plant-milk ventures in the world. Cross served as a director and remained active in the company until his death.

Legacy

Cross is often overshadowed by Donald Watson, who coined vegan in 1944, but it was Cross who gave the word its ethical content. See Donald Watson for the coinage and founding, the 1944 Vegan Society for the institution, and Veganism for the doctrine Cross defined.