The Middlesex Regiment (Duke of Cambridge's Own)
Attached to: The King's Shropshire Light Infantry

Died on Saturday 15 September 1951

Buried at the United Nations Memorial Cemetery, Pusan
in Plot 24, Row 10, Position 3, and in Grave Serial 1810.

There is an entry on Page 85 in the UK Book of Remembrance held at the National Army Museum which reads:

The Middlesex Regiment (Duke of Cambridge's Own) att The King's Shropshire Light Infantry : Private D Sumner

There is an entry in the Army Historical Branch's Roll of Honour which reads:

Number	22036186
Rank	Pte
Name	SUMNER, D
Unit	Mx att KSLI
Date of Death	15.09.51
Commemorated or Buried	Pusan-Plot 24, Row 10, Grave No. 1810