The collection is classified into 38 series representing broad subjects, periods of regimental history, and units within the regiment. Many of the series are further divided into sub-series. Files are generally described to the item level. Many of the files contain material both "about" and "created by" the subject. The collection consists of correspondence, nominal rolls, ledgers, scrapbooks, war diaries, Part I and Part II Orders, maps, blueprints, annual reports, meeting minutes, newsletters, magazines, newspapers, clippings, programmes, posters, postcards, souvenirs, and personnel documents documenting regimental activities and achievements during war and peace times, and the service of individual members of the Regiment. Also included is biographical information on the Colonels-in-Chief, Colonels of the Regiment and other Regimental personalities. Some series include pamphlets and other ephemera related to military history, regimental traditions, the Regimental Colours, training policies and procedures, uniforms and equipment, allied regiments, the airborne role, the Regimental Band, mascots, and sports. Also featured are records of the Regimental Executive Committee, the 75th anniversary celebrations of the Regiment, the PPCLI Cadets, and the biennial Exercise Ric-A-Dam-Doo conference. Significant personal papers and collections of regimental leaders and personalities include those of Princess Patricia (Lady Patricia Ramsay), Lady Patricia Brabourne (Countess Mountbatten of Burma), Hamilton Gault, Cameron Ware, G.G. Brown, and W.B.S. Sutherland. Individual collections contained within the collection include those of W.E. Bastedo (who corresponded with many Great War veterans in the 1960s), BAJ Franklin, K.F. Bunyan, E.K. Fitzgerald, Hub Gray, Eleanor M. Rieger, John Milburn, Leslie A. White, and Stephen Trache. Significant personal papers within the collection include those of Agar Adamson, Leslie W. Basham, K.C. Burness, George S. Currie, James A. de Lalanne, Walter Draycot, Dorothy Gault, Victor F. Gianelli, Stanley Jones, F.J. Kendall, N.J. McFarlane, Hugh M. McKenzie, Jenny Macgregor Morris, Donald Munro, Hugh W. Niven, D.F. Parrott, John Louis A. Robertson, and Peter Worthington. Generally, documentation of activities more recent than 1994 has been reassigned to other fonds and collections at the PPCLI archives, but some more recent records that document earlier activities continue to be added to the collection.