Collection arranged into the following series:

C DSLM/1 Minutes and Associated Records, 1959-2005

C DSLM/2 Correspondence, 1950-2004

C DSLM/3 Financial Records, 1947-2005

C DSLM/4 Membership Records, 1954-2005

C DSLM/5 Publicity Material, 1944-2005

C DSLM/6 Press Cuttings, 1947-2001

C DSLM/7 Music Competition Festival Reports, 1945-1964

C DSLM/8 Photographs, 1940s-2004

C DSLM/9 Objects, 20th cent.