Most of the sketch-maps, notes, correspondences, newspaper cuttings and photographs of Dr. Stewart McKay concern the controversial aspects of the ascent of Mt. Lindesay by Captain Logan in August of 1828. The argument, apparent in both the correspondences and letters to the editor of Dr. Stewart McKay, raged during this period as to whether Captain Logan, a member of Allan Cunningham's exploration party, actually climbed Mt. Lindsay or instead, ascended one of the nearby peaks such as Mt. Barney. This accession also includes offprints of a series of articles on local history and a copy of the Third Annual Report of the Clarence River Historical Society, both printed in the Grafton Daily Examiner during the 1930s.