It appears that some of these were donations to the Montreal Natural History Society based on a document in the EES archive. Those donations were then transfered the the Redath Museum at McGill University in 1925. At least one source of objects was the EEF directly in 1887.
Berg, David 1990. The archaeological context of the Egyptian and Nubian antiquities in the Redpath Museum. Fontanus 3, 116-130.