The Scrapbook series contains one scrapbook of photographs and newspaper clippings related to his career as the singer of “O Canada” during professional sports games.

The Biography Series consists of divergent materials, all relating to either Reiner’s personal or professional life after his arrival in Canada. The series includes: personal legal documents, autobiographical writings, medical documents, writings for lectures, documents pertaining to professional engagements, grant applications, and autographs/copies of his own compositions. The series is arranged by subject as indicated.

The Reviews/Clippings Series contains Charles Reiner’s clippings or reviews, and other articles from newspapers, magazines, and other published listings. The reviews and clippings are arranged by time period as indicated.

The Programmes Series contains concert programmes of his performances from 1950 to 1999 as well as programmes from performances that he attended and kept. The programmes are arranged chronologically.

The Correspondence Series contains letters to or by Charles Reiner, in addition to correspondence about him or pertaining to his career. Arranged chronologically by time period as indicated.

The Audio/Visual Materials series contains 97 slides, records, audiotape reels, and digital audiotapes (cassette) and CD.

The Biographical Information series consists of divergent materials, all relating to either Pedersen’s personal or professional life. The series includes: personal legal documents, early education, thesis and dissertation writings, writings for lectures, documents pertaining to professional engagements, grant applications, and other miscellaneous personal documents.

The Photographs series contains biographical and professional photos of Paul Pedersen alone and with others, as well as miscellaneous photos and proof sheets.

The Clippings series contains clippings, articles and reviews from newspapers, journals and magazines concerning performances of Pedersen’s compositions as well as McGill University Records.