Fonds consists of the following series: message book, fliers and correspondence, trial lists, reasons for sentencing, trial summaries, arrestee information book, defence strategies, pamphlets, photographs, "Ron McIsaac's historical account of Clayquot Blockade" clippings scrapbook, and photocopies of Crown Authorities for Criminal Contempt of Court trials."
Fonds consists of research material and correspondence relating to Williams' books on legal history. The files are arranged in 11 series: "Matthew Baille Begbie" series, "Duff: a life in the law" series, William Gosse on "Duff" series, "Just lawyers: seven portraits" series, "With malice aforethought" series, "Mayor Gerry: the remarkable Gerald Grattan McGeer" series, "100 Years at St. Peter's Quamichan" series, "A history of Vancouver's Terminal City Club series, "Trapline outlaw: Simon Peter Gunanoot" series, Correspondence, and Miscellaneous transcripts.