Fonds consists of correspondence with the Canadian Medical Association and its professional journal. Other contents include manuscripts of papers and addresses in addition to original copies of publications by Dr. Hattie. Fonds also contains several obituaries from different sources as well as a letter from Sec. Graduates of McGill University H.C. Pruell, (dated March 10, 1897) and a letter from Sir J.W. Dawson (dated March 20, 1897).

The collection assembled by William Morse reflected his research interests and his ideas on what works should be available for consultation by serious scholars. The exploration and early settlement of Acadia, the history of the Maritimes, the evolution of printing, the book arts, important classics in both the humanities and the sciences, the works of Bliss Carman and George Santayana, works about General James Wolfe, and Norse legends are the major research fields represented in the collection.