The bulk of Eakins' papers concern his work as a geologist and consultant for the mining industry. His Peruvian period is covered by correspondence, reports and newsletters on the San Jose prospect for the Cerro de Pasco Corporation, 1952-1956. His work with Mineral Management Ltd. (1956-1959) is documented by correspondence on mining investments and exploration. There are also files raised by Eakins for his reports on the Axel Heiberg Island project, 1962-1969 and Eakins' participation in the first Canadian workshop on "Education in the Earth Sciences" (Sudbury 1971), and the International Geological Conference of 1972. There is also correspondence, memoranda and notes relating to the history of geology at McGill and in Québec, and some correspondence with Geology Department staff members and students.

Lewis' papers consist of a few scattered items apparently assembled as part of his research for Royal Victoria Hospital 1887-1949, Montreal, McGill University Press, 1969. Newspaper clippings, 1932-1964, deal with Montréal and R.V.H. history. Lewis' correspondence, 1965-1971, with the Dominion Archivist, the McGill Archives, Dr. John Cleland, Mrs. Ellen Scrimger and others discusses various historical materials connected with the hospital. Also includes notes on material in the R.V.H. archives, some hospital newsletters and photographs, and a few reprints and addresses.