Diaries consists of 31 volumes: 23 created by Frederick Hammersley from 1931-2008; 2 by Anna Hammersley dating from 1958-1965; and 6 by Harold Hammersley dating from 1940-1966.

Frederick Hammersley's early diaries focus on his life during high school and college. They include details about classes, social activities, weather, and his relationship with his parents and sister. His 1945 diary records contain observations about his year in Paris as an army sargeant and reveals his renewed interest in art. Diaries covering the years from 1991 to 2008 document his daily routine and provide interesting details about his painting and exhibition schedules.

Materials are arranged in chronological order by author.

This series has been scanned in its entirety.