Fonds consists of archival material from the Bob Gibson Collection of Speculative Fiction, primarily the lists and indexes to the over 35,000 books, periodicals and handmade anthologies B. Gibson collected over his lifetime, including index cards in four large (57 cm x 12 cm) hand-made wooden file boxes. Also includes correspondence with speculative fiction publishers, newsclippings, artefacts (writing implements and artist's tools), and material relating to Mildred Gibson including a folder of pencil sketches and watercolours, many signed W.H. Bos.

Fonds consists of correspondence; research material; preliminary work; manuscripts of novels, short stories, anthology, radio play, articles, essays, speeches and book reviews; promotional material; reviews; works about M. Hughes; and miscellaneous material.