Edward Wrench's papers reflect his strong family ties, and Victorian attitudes regarding the importance of maintaining the integrity of the family. The papers also reflect his many interests in life as well as aspects of the medical profession, his career in the Army and events of national and local importance. Wrench's prolific writing has produced a vast number of letters (many illustrated with sketches) to friends, family and associates, and almost daily entries in the fifty seven diaries he kept until his death in 1912.
He was also a great hoarder of material, preserving a vast miscellany of letters, papers, photographs and objects relating to his life, his family and his times. The correspondence spans the period 1854-1911. There are letters sent and received while serving in the Crimea and India, and a large number from his years in Baslow. These include letters to and from his brothers, children and grandchildren, as well as members of the Cavendish and Manners (Dukes of Rutland) families.
The diaries run in a complete sequence from 1856-1912. Entries relate to matters of local and national importance, and to family and medical concerns. Wrench inserted into the diaries various letters, printed papers, photographs and other documents relevant to the written entries and current events. There are also two diaries of Edward's son William Mervyn Wrench, from 1886-1887 and 1889-1890. The former relates mainly to William's stay in New Zealand.
There is a small amount of genealogical material relating mainly to the Kirkes of East Markham, Nottinghamshire, with which the Wrench family were closely connected through various marriages. This material includes correspondence and pedigrees.
There are manuscript and typescript notebooks from 1863-1910, which include reminiscences of the Crimean War and account books.
Printed material covers newspaper cuttings, illustrations, pamphlets and books. Subject matter includes London, the Crimea, obituaries and local affairs with which Wrench was involved.
There are a number of photographs 1858-1911, although many are undated. They feature members of the Wrench family, images of Derbyshire, and pictures taken on holidays. These are complemented by a small number of sketches by Edward Wrench, undertaken at home and abroad.