Vennor's early original notes on natural history - 1853
Notes on chemistry and a trip to Chateauguay Lake
Letter from H.G. Vennor to Marion
Notebook on ornithology
Notes and correspondence
Notebook on natural history subjects
Vennor's school days, McGill College, 1865
Davies' naturalist's guide
Notebook of newspaper clippings from the "Montreal Witness"
Field notebook