Over 5 000 print items and 2 500 photographs have been digitized and are available to view online.
- *NEW*: Office of the President (Sir Robert Falconer) correspondence files, 1913-1915
- This is an ongoing digitization project. More to come!
- Board of Governors collection
- Mary Quayle Innis diaries
- David Dunlap Observatory scrapbook (1934)