This series focuses on the history of the organs in the School Chapel, from the first one installed in 1930 to the current instruments built in 1993.

This series focusses on the headmastership of Grosvenor Talbot Griffith (1935-1958) and contains items relating to the life at School in the mid-20th century, its staff and pupils.

This series focusses on the headmastership of John David Buchanan (1958-1977) and contains items relating to the life at School in the 1960s and 1970s, its staff and pupils. The bulk of the series consists of books, publications, letters, speeches and sermons written by Mr Buchanan himself.

This series focusses on the headmastership of Oliver Richard Sylvester Bull (1977-1984) and contains items relating to the life at School in the 1970s and 1980s, its staff and pupils. One of the files relates to Michael Stevens as Acting Headmaster for two terms in 1985.

This sub-series focuses on the history of the 1993 Organ in the School Chapel. After the 1930 organ expired and was replaced by a computer organ in the 1980s, the headmaster Graham Smallbone commissioned for a new organ to be built. Some items highlight the various proposals, the correspondence focuses on the building and installation of the organ and the photographic file finally shows the organ in Chapel.

A series of correspondance concering the Peter Collins' organ.

A letter concerining the donation gift towards the order. Also contains an update on the organ and memories about the loss of their son.

A letter regretting that Mr Smallbone cannot attend the unveiling of the stained glass window in memory of David White. Update on the organ included.

A letter talking about the carvings and how they are a gift from the Whites. Discusses the open day and the Derbyshire Organist Association.

A letter discussing the installation of the organ and discussing an inscription that could be made to honour David White and Henrietta Lea.