Letter to Harvey Cushing from Samuel McClintock Hamill, 1822, Spruce Street, Philadelphia, Pennsylvania, USA. Hamill recalls his days as a student intern under Osler.

Letter to Harvey Cushing from Thomas McCrae, 1929, Spruce Street, Philadelphia, Pennsylvania, USA. Precision brought by McCrae on the their book Modern Medicine (in USA) and A System of Medicine (in the English Edition). In the first edition, only Osler's name appeared while in the second edition both names appeared (Osler and McCrae). McCrae listed the articles produced by Osler in each volume.

Letter to William Osler from Kenneth M. Blakiston, P. Blakiston's Son & Co., 1012 Walnut Street, Philadelphia, Pennsylvania, USA. Payment and publication information for Osler's books. Blakiston regrets to inform Osler that nothing can be done with "Oslerisms" until the following year. On Osler's recommendation, Blakiston will send a copy of Chittenden's book on Nutrition to the Governor-General of Canada.

Letter to William Osler from H.C. Wood, 1925, Chestnut Street, Philadelphia, Pennsylvania, USA. "Re. newspaper accounts of appt. to McGill to succeed Dawson." Wood asks Osler if he plans to accept the appointment to McGill.

Letter to William Osler from Horatio C. Wood, 4107, Chester Avenue, Philadelphia, Pennsylvania, USA. Pleased that his son has escaped injury. Mentions a 87 year old man who fought in 122 engagements during the Civil war and was never injured. Sends one of his two copies of George B. Wood's poem with a statement regarding it on the fly leaf. Political comments on war. Thinks that Roosevelt would have settled this thing months ago. Anecdote about Senator La Follette. Civilities. - Attached is the copy of the statement written by Wood and Osler's note about the book.

Letter to William Osler from Horatio C. Wood, 4107, Chester Avenue, Philadelphia, Pennsylvania, USA. Biographical note on George B. Wood. As executor he could only get hold of one or two copies of the book; and does not remember giving one to Osler, but says that it was a strong testimony of the high esteem he had for him. Details on his health. Prays that Revere may escape. Commentary on the Kaiser and on Woodrow Wilson. Lincoln's quotation. Comments on the re-election of Wilson. - On the back of this letter, Grace Osler's remark: "This man was born a good Quaker".

Letter to William Raphael from William Osler, 131, South 15th Street, Philadelphia, Pennsylvania, USA. Osler suggests some improvements for a drawing done by Raphael.

Letter to John H. Musser from Charles H. Mills, 1909, Chestnut Street, Philadelphia, Pennsylvania, USA. Mills and Dr. Dercum are to take over some lectures for Osler and Musser.

Letter to William Osler from Silas Weir Mitchell, 1524, Walnut Street, Philadelphia, Pennsylvania, USA. "Appt. to McGill." Mitchell has learnt from newspaper reports that Osler has been named President of McGill University.