Letter to Frederick Parkes Weber, (November 19, 1915 ?)
Extract from Archibald Malloch's journal, November 23, 1915
Letter to William Osler, November 23, 1915
Letter to Henry Mills Thomas, November 25, 1914
Extract from Archibald Malloch's journal, November 25, 1915
Letter to Harvey Cushing, December 7, 1915
Extract from Archibald Malloch's journal, December 12, 1915
Extract from Archibald Malloch's journal, December 18, 1915
Cushing's notes, 1916
Letter to James William White, January 4, 1916