South Derbyshire District Colliery Owners Association printed copy minute book for the year 1939 Containing index at start: (pages 1419-1561) minutes for meetings of the SDDCOA and its sub-committees, 4 Jan-18 Dec 1939, with interspersed minutes of meetings of the SDDCOA and South Derbyshire Amalgamated Miners Association, 17 Jan-18 Dec 1939 (verbatim records for meeting 13 Nov): and (unnumbered pages) minutes of meeting of the South Derbyshire District Wages Board for the Coal Industry Sub-Committee, 28 Jan-23 Dec 1939. Jan 1939-Dec 1939