The recent mention of the University of Leeds Calendar 1921-22 led me to discover that U of L has a searchable "Digital Library": https://digital.library.leeds.ac.uk

Here is a search for "Tolkien" ordered (more or less) chronologically: Tolkien

Hints for usage:

The "Tolkien" search takes some time to execute, so open links to results items in a separate tab/window.

At the linked page for each item returned, you'll want to look for the small boxed image (which may take some time to appear) directly beneath the (slow and mostly pointless) page preview gallery, which will link you to a downloadable PDF file of the complete item.

Some highlights I've found so far:

University of Leeds Calendar 1921-22 (the aforementioned), English Language and Literature syllabus offered by Tolkien, Gordon, Cowling, and Davis:
http://digital.library.leeds.ac.uk/11262/
PDF

University of Leeds Calendar 1923-24, including lists of texts and examination topics (presumably) set by Tolkien and Gordon (oddly, Tolkien appears to not be named in this volume, at least as searchable in the text):
http://digital.library.leeds.ac.uk/11263/
PDF

University of Leeds Calendar 1925-26:
http://digital.library.leeds.ac.uk/11550/
PDF

The Gryphon, Feb. 1929, with a brief report on Tolkien's Jan. 1929 lecture "Celts and Teutons in the Early World" (see Scull/Hammond TCG p. 158):
http://digital.library.leeds.ac.uk/21344/
PDF

The Gryphon, Oct. 1938, obit for E.V. Gordon (with mention of Tolkien):
http://digital.library.leeds.ac.uk/5317/
PDF

Shippey, Tom, "Boar and Badger: An Old English Heroic Antithesis" (1985), with numerous engagements with Tolkien:
http://digital.library.leeds.ac.uk/212/
PDF

Carl

P.S. Sorry if this has been pointed out here before, but if so this will hopefully still be of some use.