Painter, illustrator and teacher, husband of the artist Pam Masco, noted for his English and continental scenes, figure studies and portraits. London-born Heseltine studied at South-East Essex College of Art, obtaining a teaching diploma and scholarship to the Royal College of Art, 1942. In 1941 he gained the Farquharson Memorial Prize. After Royal Naval service for four years he worked as art editor for Norman Kark Publications, then in 1949 began a freelance career as an illustrator. In 1969 Heseltine was commissioned by International Publishing Corporation to paint the investiture of the Prince of Wales. He lectured at Wellington College and adjudicated for South-East Essex College of Art through the 1970s. RP, Bourne Gallery in Reigate and David Messum Gallery showed Heseltine’s pictures, which included large, textured, quasi-abstract works.