Collection consists of typescript and holograph manuscripts of mathematical calculations, proofs, notes, diagrams and diary entries; and coloured slides of tiling diagrams of geometric shapes in various combinations and sequences. Mathematical subjects include hexagonal tiling and prime numbers. Titles on binders containing manuscripts include Tile, Twinlock, N-rep presentations, Hex, Penrose pair, N roots, Re-ordering of O-branch sets and Pythagorean (Hex) numbers play.

Fonds consists of correspondence; research material on a broad range of mathematical topics; manuscripts of mathematical articles, notes, calculations and solutions to mathematical problems; and published work.

Fonds consists of Leon Bankoff's collection of material relating to a geometric figure, the 'arbelos'. Includes correspondence, primarily with other mathematicians including Clayton W. Dodge, Howard Eves, Leo Sauvé, and Charles W. Trigg; manuscripts including notebooks; published works; works by others; and material by and about M. Victor Thébault.

Fonds consists of correspondence between C.M. Jones and Richard Guy and solutions to problems in number theory.

Fonds consists of correspondence with internationally renowned mathematicians; manuscripts of articles and papers; research, teaching and conference materials; newspaper clippings; notebooks; pamphlets; published works; awards; an unpublished manuscript written with Dutch mathematician Nicholaas G. de Bruijn entitled Pattern enumeration; and papers and articles by others.

Fonds consists of correspondence between H.L. Nelson and various persons relating to puzzles and games and to Journal of Recreational Mathematics during period when H.L. Nelson was editor of the journal.

Fonds consists of manuscripts and published works by J.R. Hendricks, a compact disk containing many of his publications, works about him and works by others.

Fonds consists of correspondence and related material such as notes, solutions, papers and reprints of various correspondents including Norman Anning, Donald Coxeter, Clayton W. Dodge, Paul Erdos, Martin Gardner, Victor Thébault, Charles W. Trigg and Leo Sauvé; research material on a broad range of mathematical topics; notebooks; manuscripts of mathematical articles and solutions and book reviews; published works; works about L. Bankoff; photographs; slides; and miscellaneous. Fonds also includes selected issues of many mathematics journals including American Mathematics Monthly and Mathematics Magazine.