In the early 1960s, Allan studied teacher training in Sunderland, where he also met Janet, his future wife. He had tackled a wide variety of jobs, ranging from postman to plumber's mate before working as a primary teacher for ten years. Janet, however, discovering that she 'couldn't do the policing job', went on to study graphic design, which led her to her vocation as an illustrator.
Several years later, bored with her then current job, and desperate for a creative opening, Janet asked Allan to write a children's book for her to illustrate. Allan, having always wanted to write but being unable to find his niche, suddenly felt 'as though [he] was a clockwork toy and she had turned the key'. So began the career which would later lead them to become one of Britain's most successful author/illustrator teams, producing ingenious books of the highest quality.