Published in The London Gazette dated 23rd December 1939 (pp8546/8547).
Sources
- Fevyer, W.H., The Distinguished Service Medal 1939-1946, J.B. Hayward & Son, Polstead, Suffolk, England, 1981
- Second Supplement to The London Gazette of Friday 22nd November December 1939, Issue 34759, dd 23rd December 1939