[5] An inquiry in a serious explosion at Grassmoor Colliery, which led to the deaths of 14 miners, was held in the council chamber in the Stephenson Memorial Hall in December 1933.

[6] A purpose-built facility on Rose Hill, which was designed by Bradshaw Gass & Hope in the Neo-Georgian style and built by Robert Carlyle Co of Manchester, was officially opened by Evelyn Cavendish, Duchess of Devonshire on 6 April 1938.

[9] A war memorial and some urns, terraces and steps which had been designed by Bradshaw Gass & Hope as part of the formal approach to the town hall was unveiled by the Andrew Cavendish, 11th Duke of Devonshire on 8 May 1954.

[10] The building, which had served as the meeting place of Borough of Chesterfield continued to be the local seat of government after enlargement of the council's area in 1974.

[11] Through the removal of interior walls, the works created extra space which enabled the Derbyshire Register Office and other public sector organisations to be accommodated in the building.