Radio scripts written for programmes such as West of the Dyke, Today, Woman's Hour, Farm Fare, News From Wales and In Town Tonight on the subjects of dog shows, literature, canine behaviour, Welsh dogs and Hubbard's pet dingo, with relevant letters and notes.

The series comprises letters, 1948-1995, from publishers, organisations, breeders and private individuals, mainly on the subjects of dog breeds; canine behaviour; health and welfare; anecdotes; the content, illustration and publication of canine literature; Hubbard's private book collection; orders for books; radio broadcasts; dog shows; breed club business; and personalities of the dog world.