Alfred Frank Cook was born in Midland, Ontario, in August 1894. Cook was a law student who enlisted in August 1915 in Niagara, Ontario, with the 58th Battalion. He served overseas with the 58th Battalion until 1918 when he transferred to the R.A.F. as a flight cadet. He was found to be medically unfit and was discharged and returned to Canada at the end of the war. The collection currently consists of thirty eight letters.