The collection includes 18 annual diaries written by John Dunlop Reid. These diaries span the years 1887-1897, 1900, 1902-1907, 1912. The collection also includes correspondence among members of the Dunlop Reid family, including John Dunlop Reid, his parents and siblings, his spouse Roberta Reid, her parents, cousins, and friends, John and Roberta's children, Fergus Reid and Kenneth Reid, and their children, grandchildren, other relatives, and friends.