King-Smith met his wife, Myrle on Christmas Day 1936. They were both 14. They were married at St. Mary's Church, Bitton, on 6 February 1943. They had three children: Juliet, Giles and Liz. Myrle died in 2000, and King-Smith subsequently married Zona Bedding, a family friend. He presented a feature on animals on TV-AM's children's programme Rub-a-Dub-Tub (1983).
