Constance Elizabeth Chapman (1919-2005) was a British children's author who created a series of books based on a fictional red lorry called "Marmaduke". The series began in the 1950s. The Marmaduke books were also published in Dutch (where Marmaduke became "Marmaduk") and in Swedish (where Marmaduke became "Lastbilen Teo.") (According to OCLC WorldCat Identities, she is the author of "37 works in 65 publications in 3 languages and 423 library holdings.")