The file includes handwritten lists of newspaper and magazine publications by Hubbard under his own name and under his pseudonyms, 'Canis' and 'Barry Fraser', 1931-1948, with cuttings of several of the printed articles, an index to his files, 1938, lists of dog breeds and types, press cuttings about his life and reviews of his books.
Notes headed 'Burke's Dogs' which appear to belong with a draft and proofs of a German book in translation about the characteristics of various dog breeds, edited by Hubbard, but for which no details of title or publication have been traced.
Newspaper and magazine articles,
The series comprises whole issues, individual pages, scrap books and loose cuttings of newspapers and magazines, 1816-1993, covering the biology of breeding, breed types, care, welfare, training, dog-loving celebrities, showing, clubs, animal photography, dogs and the law, working dogs, terriers, spaniels, anecdotes and a few, non-canine topics.
Research notes and source materials,
The series comprises research notes, pedigrees, press cuttings, manuscript and printed sources, copies and extracts from literature, private letters, printed leaflets and circulars, on the subjects of canine bibliographies, 1958, 1972, literature, [post-1786], 1896, [1925], 1944-1945, history, c. 1800, 1862-1875, 1908-1951, British and foreign dog breeds, classification of types, breed conformation standards, 1883-1995, physiology and health, 1924-1970, care, breeding and training, [post-1924]-1971, hunting, 1888-1954, dogs in art, war, work and leisure, 1937-1951, and the pug, 1950-1966; and an album of show certificates, [1889]-1895. Since the format of the majority of files is similar, only items of particular interest are noted at file level.
Work-related letters (correspondent files),
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.
Work-related letters (subject files),
The series comprises work-related letters from publishers, organisations, breeders and private individuals, already filed by Hubbard under subject, and mostly with original headings. The subjects include advertisment, publicity and distribution of the Dog Lover's Library via literature, the media, dog show stands and a travelling van, 1957-1959; proposals for a pocket book of dogs and for further publications relating to specific breeds, 1951-1960; book orders, 1950-1987; dog purchases, 1958-1959; identification and valuation of paintings in Hubbard's possession, 1957; and breed characteristics of Welsh Beagles, 1949.