Letter from William Kersteman to B.J. Harrington, written from Toronto.
Letter from Thomas Heys to B.J. Harrington, written from Toronto.
Letter from the American Biographical Publishing Co., written from Toronto, accompanying a proof sheet of B. J. Harrington's autobiographical sketch.
Letter, 23 March 1883
Letter, 21 March 1884
Letter from Maurice Hutton to B.J. Harrington, written from Toronto.
Letter from R. Ramsay Wright to B.J. Harrington, written from Toronto.
Letter, 28 October 1886
Letter, November 1886
Letter from Otto Hahn to B.J. Harrington, written from toronto.