Letters
- Tom Thomson, Letter to Dr. M. J. McRuer, October 17, 1912
- Dr. J. M. McRuer, Letter to Tom Thomson, November 1, 1912
- Leonard E. Mack, Letter to Tom Thomson, March 16, 1913
- Alex Jackson, Letter to Dr. James MacCallum, 1914
- A. Y. Jackson, Letter to the children, February 31, 1914
- Alex Y. Jackson, Letter to Dr. James MacCallum, March 5, 1914
- Tom Thomson, Letter to Fred, July 8, 1914
- A.Y. Jackson, Letter to the Kids, August 29, 1914
- F. Horsman Varley, Letter to Dr. James MacCallum, October 31, 1914
- Tom Thomson, Letter to Dr. James MacCallum, October 6, 1914
- Arthur Lismer, Letter to Dr. James MacCallum, October 11, 1914
- Alex Y. Jackson, Letter to Dr. James MacCallum, October 13, 1914
- A.Y. Jackson, Letter to Kate, April 18, 1915
- Tom Thomson, Letter to J. E. H. Macdonald, July 22, 1915
- A. Y. Jackson, Letter to Jack, September 31, 1915
- Arthur Lismer, Letter to Tom Thomson, January 31, 1916
- Alex Jackson, Letter to Dr. James MacCallum, January 10, 1916
- A. Y. Jackson, Letter to Katrinka, May 11, 1916
- Christine Bertram, Letter to Tom Thomson, August 3, 1916
- A.Y. Jackson, Postcard to the Kids, August 27, 1916
- Tom Thomson, Letter to Dr. James MacCallum, October 4, 1916
- T. W. Gibson, Ontario Deputy Minister of Mines, Letter to G. W. Bartlett, Superintendent, Algonquin Park, March 28, 1917 , March 28, 1917
- Tom Thomson, Letter to Tom [T. J. Harkness], April 31, 1917
- T. W. Gibson, Ontario Deputy Minister of Mines, Letter to G. W. Bartlett, Superintendent, Algonquin Park, April 14, 1917
- Tom Thomson, Letter to John Thomson, April 16, 1917
- Tom Thomson, Letter to Dr. James MacCallum, April 21, 1917
- T. W. Gibson, Ontario Deputy Minister of Mines, Letter to G. W. Bartlett, Superintendent, Algonquin Park, May 9, 1917
- T. W. Gibson, Ontario Deputy Minister of Mines, Letter to G. W. Bartlett, Superintendent, Algonquin Park, May 12, 1917
- T. W. Gibson, Ontario Deputy Minister of Mines, Letter to G. W. Bartlett, Superintendent, Algonquin Park, May 22, 1917
- Dr. James MacCallum, Letter to Tom Thomson, May 28, 1917
- Tom Thomson, Letter to Dr. James MacCallum, July 7, 1917
- J. S. Fraser, Letter to Dr. James MacCallum, July 12, 1917
- , Copy of Dr. G. W. Howland's affidavit , July 17, 1917
- J. S. Fraser, Letter to John Thomson, July 18, 1917
- T. J. Harkness, Letter to R. H. Flavelle, July 23, 1917
- J. S. Fraser, Letter to Dr. J. MacCallum, July 24, 1917
- R. H. Flavelle, Letter to T. J. Harkness, July 25, 1917
- Margaret Thomson, Letter to Dr. James MacCallum, August 2, 1917
- J. S. Fraser, Letter to T. J. Harkness, August 6, 1917
- Winnifred Trainor, Letter to T. J. Harkness, August 11, 1917
- Dr. James MacCallum, Letter to [John Thomson?], September 1, 1917
- J. S. Fraser, Letter to T. J. Harkness, September 8, 1917
- Winnifred Trainor, Letter to T. J. Harkness, September 8, 1917
- Margaret Thomson, Letter to Dr. James MacCallum, September 9, 1917
- T. J. Harkness, Letter to J. S. Fraser, September 12, 1917
- Winifred Trainor, Letter to [George?] Thomson, September 17, 1917
- J. S. Fraser, Letter to Dr. James MacCallum, November 11, 1917
- Dr. James MacCallum, Letter to T. J. Harkness, November 13, 1917
- George Thomson, Letter to J. S. Fraser, December 25, 1917
- J. S. Fraser, Letter to [George] Thomson, December 29, 1917
- J. S. Fraser, Letter to Dr. James MacCallum, December 29, 1917
- Dr. James MacCallum, Letter to T. J. Harkness, May 6, 1918
- Eric Brown, Letter to Dr. James MacCallum, August 26, 1918
- J.E.H. MacDonald, Letter to T. J. Harkness, January 24, 1920
- Dr. James MacCallum, Letter to Bobby, January 24, 1930
- Mark Robinson, Letter to Blodwen Davies, March 23, 1930
- [Fraser?] Thomson, Letter to Blodwen Davies, May 19, 1930
- Alan H. Ross, Letter to Blodwen Davies, June 1, 1930
- Alan H. Ross, Letter to Blodwen Davies, June 11, 1930
- Mark Robinson and Blodwen Davies, Response to Blodwen Davies’ questions, September 4, 1930
- Mark Robinson, Letter to Blodwen Davies, September 4, 1930
- I.R. Mackintosh, Letter to Blodwen Davies, November 15, 1930
- Ed Godin, Letter to Blodwen Davies, November 17, 1930
- George Thomson, Letter to Blodwen Davies, December 29, 1930
- Minnie Henry, Letter to Blodwen Davies, February 2, 1931
- Louise Henry, Letter to Blodwen Davies, March 11, 1931
- Harry B. Jackson, Letter to Blodwen Davies, April 29, 1931
- Harry B. Jackson, Letter to Blodwen Davies, May 5, 1931
- Dr. A.E. Ranney, Letter to Blodwen Davies, May 7, 1931
- J. E. H. Macdonald, Letter to Blodwen Davies, May 21, 1931
- T.E. McKee, Letter to Blodwen Davies, June 5, 1931
- George Thomson, Letter to Blodwen Davies, June 8, 1931
- E.E. Godin, Letter to Blodwen Davies, June 15, 1931
- Major General Bridges, Letter to Blodwen Davies, June 27, 1931
- Rev. A.D. Cornett, Letter to Blodwen Davies, July 20, 1931
- I. A. Humphries, Memorandum to the Attorney General re: Tom Thomson, August 6, 1931
- Eric Brown, Letter to Blodwen Davies, September 11, 1931
- George Thomson, Letter to Blodwen Davies, April 23, 1934
- Alex [Y. Jackson], Letter to Yvonne, September 15, 1966