The biography "Mahatma Gandhi: Pensaer yr India" ("Mahatma Gandhi: The Architect of India") was published in 1970. In a review in the monthly magazine "Barn" the Reverend Alwyn Roberts praised the title for bringing the contribution of Gandhi to a new generation of readers. This volume was the inspiration for a series of three books on Welsh pacifists. Each volume included a portrayal of the peace initiatives of well-known peace workers by academics and authors under the titles "Herio'r Byd" (1980), "Dal i Herio'r Byd" (1983) and "Dal Ati i Herio'r Byd" (1988), all edited by D. Ben Rees.