Postcard from Rankine Dawson to Margaret Mercer Dawson.

File contains 2 handwritten manuscript copies of the personal writings of Joseph Hadfield and his observations during his time in the fur trade. Hadfield mentions the role of traders making expeditions to the West and North West to barter with Indigenous communities for furs. He describes in detail how voyages were made from Montreal through Lake Ontario and Erie to Detroit by traders. Handfield provides lists of trade goods that he judged necessary for these traders to carry for barter and lists the skins received in exchange for goods. He lists the particular details of one cargo carried by canoe, with quantities and weight and value of goods transported. He also details which geographical regions are good for fur trapping (including Detroit, Michilimackinac, and Grand Portage) and provides pricing information for different types of animal skins, and distances traveled by traders. Includes very brief descriptions of activities of Indigenous community in the Northwest Canada/Detroit region and European fur trader settlements.

Also included the file are two letters written by Hadfield's granddaughter, Miss A. Hadfield, to Dr. G. R. Lomer of McGill University. The letters explain that Miss Hadfield had in her possession these accounts of her grandfather and she was inquiring to their informational value.

Letter from J.F. Dickie to John William Dawson, written from Detroit.

Letter from Parke Davis & Co. to John William Dawson, written from Detroit.

Letter from M.E.D. Trowbridge to John William Dawson, written from Detroit, Mich.

Letter to Harvey Cushing from H. Preston Hoskins, Secretary-Editor, American Veterinary Medical Association, Detroit, Michigan, USA. Hoskins sends a copy of the Journal of the American Veterinary Medical Association containing an article by Dr. Ward Giltner entitled "Osler and Veterinary Medicine," which draws heavily on Cushing's "Life of Sir William Osler." [See CUS417/57.52] Hoskins' father and Osler had offices within in block of each other in Philadelphia. He writes of Dr. Joseph Hawkins, who attended school with Osler in Dundas.

Letter to Harvey Cushing from Axel M. Hjort, 660, St. Claire Avenue, Detroit, Michigan, USA. Hjort sends his copy of "Life of Sir William Osler" to be autographed. He found the book to be a great inspiration.

Letter to Harvey Cushing from F.T.(?) Murphy, Penobscot Building, Detroit, Michigan, USA. Murphy(?) wonders how Cushing had time to collect and arrange all the material for his biography of Osler, and still manage to produce a delightful piece of work.

Letter to Harvey Cushing from Harold C. Mack, Harper Hospital, Detroit, Michigan, USA. Mack thanks Cushing for his wonderful contribution to medical literature with "Life of Sir William Osler."