This fonds consists of photocopies of two diaries of Mark Robinson from October 8 to December 31, 1915 and January 1 to March 3, 1917. The 1915 diary deals mainly with recruiting men from Simcoe County. The 1917 diary describes an instructional tour of the trenches in France, time spent in England, and his return to Canada. Leslie and Cecil Frost are mentioned in these diaries.