The National Library of Canada also hold a significant Pentland collection.

The National Library of Canada holds several of his papers.

His papers, which include unpublished compositions and an autobiography, are now held at the National Library of Canada in Ottawa.

- National Library of Canada (last modified on 23 January 2008)

All publications are on deposit with the National Library of Canada.

His records were donated to the National Library of Canada by his stepdaughter.

Shortly before his death, his "professional" library was acquired by the National Library of Canada.

-Legal deposit of National Library of Canada, fourth quarter 2004.

Retrieved from the National Library of Canada.

An exhibition of the National Library of Canada from October 17, 1994 to March 12, 1995.