As part of this campaign, in 1995, the Society produced the documentary Devour the Earth, written by Tony Wardle and narrated by Paul McCartney.
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According to his daughter, Kathleen Keleny, it was named after Sir Isaac Pitman, then vice-president of the Vegetarian Society.
In 1939, Szekely married Brooklyn-born Deborah Shainman, whose mother was a past vice-president of the New York Vegetarian Society.