This collections contains correspondence, manuscripts, typescripts, photographs, ephemera and other material written by or relating to Professor Gordon Greenwood. This includes material about his wife Thora Greenwood (nee Smeal), their family and extended family, friends and academic associates, research material for works by Gordon Greenwood and about Gordon Greenwood and Thora Greenwood. Helen Derrick, their daughter has used much of the material in this collection to produce family history documents; in some cases she has added her own notes to this material. Some of her works are also contained in the collection.